21601710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 96

約数和(自身を含む): 62244000

約数和(自身を除く): 40642290

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 37, 39, 45, 65, 74, 78, 90, 111, 117, 130, 185, 195, 222, 234, 333, 370, 390, 481, 499, 555, 585, 666, 962, 998, 1110, 1170, 1443, 1497, 1665, 2405, 2495, 2886, 2994, 3330, 4329, 4491, 4810, 4990, 6487, 7215, 7485, 8658, 8982, 12974, 14430, 14970, 18463, 19461, 21645, 22455, 32435, 36926, 38922, 43290, 44910, 55389, 58383, 64870, 92315, 97305, 110778, 116766, 166167, 184630, 194610, 240019, 276945, 291915, 332334, 480038, 553890, 583830, 720057, 830835, 1200095, 1440114, 1661670, 2160171, 2400190, 3600285, 4320342, 7200570, 10800855, 21601710]

約数ペア:

[(1, 21601710), (2, 10800855), (3, 7200570), (5, 4320342), (6, 3600285), (9, 2400190), (10, 2160171), (13, 1661670), (15, 1440114), (18, 1200095), (26, 830835), (30, 720057), (37, 583830), (39, 553890), (45, 480038), (65, 332334), (74, 291915), (78, 276945), (90, 240019), (111, 194610), (117, 184630), (130, 166167), (185, 116766), (195, 110778), (222, 97305), (234, 92315), (333, 64870), (370, 58383), (390, 55389), (481, 44910), (499, 43290), (555, 38922), (585, 36926), (666, 32435), (962, 22455), (998, 21645), (1110, 19461), (1170, 18463), (1443, 14970), (1497, 14430), (1665, 12974), (2405, 8982), (2495, 8658), (2886, 7485), (2994, 7215), (3330, 6487), (4329, 4990), (4491, 4810)]