21237021720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{531457}}^1$

素因数の和:531514

約数の個数: 128

約数和(自身を含む): 72703454400

約数和(自身を除く): 51466432680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 540, 555, 666, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1998, 2220, 2664, 3330, 3996, 4440, 4995, 6660, 7992, 9990, 13320, 19980, 39960, 531457, 1062914, 1594371, 2125828, 2657285, 3188742, 4251656, 4783113, 5314570, 6377484, 7971855, 9566226, 10629140, 12754968, 14349339, 15943710, 19132452, 19663909, 21258280, 23915565, 28698678, 31887420, 38264904, 39327818, 47831130, 57397356, 58991727, 63774840, 71746695, 78655636, 95662260, 98319545, 114794712, 117983454, 143493390, 157311272, 176975181, 191324520, 196639090, 235966908, 286986780, 294958635, 353950362, 393278180, 471933816, 530925543, 573973560, 589917270, 707900724, 786556360, 884875905, 1061851086, 1179834540, 1415801448, 1769751810, 2123702172, 2359669080, 2654627715, 3539503620, 4247404344, 5309255430, 7079007240, 10618510860, 21237021720]

約数ペア:

[(1, 21237021720), (2, 10618510860), (3, 7079007240), (4, 5309255430), (5, 4247404344), (6, 3539503620), (8, 2654627715), (9, 2359669080), (10, 2123702172), (12, 1769751810), (15, 1415801448), (18, 1179834540), (20, 1061851086), (24, 884875905), (27, 786556360), (30, 707900724), (36, 589917270), (37, 573973560), (40, 530925543), (45, 471933816), (54, 393278180), (60, 353950362), (72, 294958635), (74, 286986780), (90, 235966908), (108, 196639090), (111, 191324520), (120, 176975181), (135, 157311272), (148, 143493390), (180, 117983454), (185, 114794712), (216, 98319545), (222, 95662260), (270, 78655636), (296, 71746695), (333, 63774840), (360, 58991727), (370, 57397356), (444, 47831130), (540, 39327818), (555, 38264904), (666, 31887420), (740, 28698678), (888, 23915565), (999, 21258280), (1080, 19663909), (1110, 19132452), (1332, 15943710), (1480, 14349339), (1665, 12754968), (1998, 10629140), (2220, 9566226), (2664, 7971855), (3330, 6377484), (3996, 5314570), (4440, 4783113), (4995, 4251656), (6660, 3188742), (7992, 2657285), (9990, 2125828), (13320, 1594371), (19980, 1062914), (39960, 531457)]