21579030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:402

約数の個数: 96

約数和(自身を含む): 62270208

約数和(自身を除く): 40691178

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 71, 90, 99, 110, 142, 165, 198, 213, 307, 330, 355, 426, 495, 614, 639, 710, 781, 921, 990, 1065, 1278, 1535, 1562, 1842, 2130, 2343, 2763, 3070, 3195, 3377, 3905, 4605, 4686, 5526, 6390, 6754, 7029, 7810, 9210, 10131, 11715, 13815, 14058, 16885, 20262, 21797, 23430, 27630, 30393, 33770, 35145, 43594, 50655, 60786, 65391, 70290, 101310, 108985, 130782, 151965, 196173, 217970, 239767, 303930, 326955, 392346, 479534, 653910, 719301, 980865, 1198835, 1438602, 1961730, 2157903, 2397670, 3596505, 4315806, 7193010, 10789515, 21579030]

約数ペア:

[(1, 21579030), (2, 10789515), (3, 7193010), (5, 4315806), (6, 3596505), (9, 2397670), (10, 2157903), (11, 1961730), (15, 1438602), (18, 1198835), (22, 980865), (30, 719301), (33, 653910), (45, 479534), (55, 392346), (66, 326955), (71, 303930), (90, 239767), (99, 217970), (110, 196173), (142, 151965), (165, 130782), (198, 108985), (213, 101310), (307, 70290), (330, 65391), (355, 60786), (426, 50655), (495, 43594), (614, 35145), (639, 33770), (710, 30393), (781, 27630), (921, 23430), (990, 21797), (1065, 20262), (1278, 16885), (1535, 14058), (1562, 13815), (1842, 11715), (2130, 10131), (2343, 9210), (2763, 7810), (3070, 7029), (3195, 6754), (3377, 6390), (3905, 5526), (4605, 4686)]