21235225740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{26497}}^1$

素因数の和:26584

約数の個数: 144

約数和(自身を含む): 64451191392

約数和(自身を除く): 43215965652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 74, 76, 95, 111, 114, 148, 185, 190, 222, 228, 285, 361, 370, 380, 444, 555, 570, 703, 722, 740, 1083, 1110, 1140, 1406, 1444, 1805, 2109, 2166, 2220, 2812, 3515, 3610, 4218, 4332, 5415, 7030, 7220, 8436, 10545, 10830, 13357, 14060, 21090, 21660, 26497, 26714, 40071, 42180, 52994, 53428, 66785, 79491, 80142, 105988, 132485, 133570, 158982, 160284, 200355, 264970, 267140, 317964, 397455, 400710, 503443, 529940, 794910, 801420, 980389, 1006886, 1510329, 1589820, 1960778, 2013772, 2517215, 2941167, 3020658, 3921556, 4901945, 5034430, 5882334, 6041316, 7551645, 9565417, 9803890, 10068860, 11764668, 14705835, 15103290, 18627391, 19130834, 19607780, 28696251, 29411670, 30206580, 37254782, 38261668, 47827085, 55882173, 57392502, 58823340, 74509564, 93136955, 95654170, 111764346, 114785004, 143481255, 186273910, 191308340, 223528692, 279410865, 286962510, 353920429, 372547820, 558821730, 573925020, 707840858, 1061761287, 1117643460, 1415681716, 1769602145, 2123522574, 3539204290, 4247045148, 5308806435, 7078408580, 10617612870, 21235225740]

約数ペア:

[(1, 21235225740), (2, 10617612870), (3, 7078408580), (4, 5308806435), (5, 4247045148), (6, 3539204290), (10, 2123522574), (12, 1769602145), (15, 1415681716), (19, 1117643460), (20, 1061761287), (30, 707840858), (37, 573925020), (38, 558821730), (57, 372547820), (60, 353920429), (74, 286962510), (76, 279410865), (95, 223528692), (111, 191308340), (114, 186273910), (148, 143481255), (185, 114785004), (190, 111764346), (222, 95654170), (228, 93136955), (285, 74509564), (361, 58823340), (370, 57392502), (380, 55882173), (444, 47827085), (555, 38261668), (570, 37254782), (703, 30206580), (722, 29411670), (740, 28696251), (1083, 19607780), (1110, 19130834), (1140, 18627391), (1406, 15103290), (1444, 14705835), (1805, 11764668), (2109, 10068860), (2166, 9803890), (2220, 9565417), (2812, 7551645), (3515, 6041316), (3610, 5882334), (4218, 5034430), (4332, 4901945), (5415, 3921556), (7030, 3020658), (7220, 2941167), (8436, 2517215), (10545, 2013772), (10830, 1960778), (13357, 1589820), (14060, 1510329), (21090, 1006886), (21660, 980389), (26497, 801420), (26714, 794910), (40071, 529940), (42180, 503443), (52994, 400710), (53428, 397455), (66785, 317964), (79491, 267140), (80142, 264970), (105988, 200355), (132485, 160284), (133570, 158982)]