21290022

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2459}}^1$

素因数の和:2517

約数の個数: 48

約数和(自身を含む): 51040080

約数和(自身を除く): 29750058

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2459, 2886, 4329, 4918, 7377, 8658, 14754, 22131, 31967, 44262, 63934, 90983, 95901, 181966, 191802, 272949, 287703, 545898, 575406, 818847, 1182779, 1637694, 2365558, 3548337, 7096674, 10645011, 21290022]

約数ペア:

[(1, 21290022), (2, 10645011), (3, 7096674), (6, 3548337), (9, 2365558), (13, 1637694), (18, 1182779), (26, 818847), (37, 575406), (39, 545898), (74, 287703), (78, 272949), (111, 191802), (117, 181966), (222, 95901), (234, 90983), (333, 63934), (481, 44262), (666, 31967), (962, 22131), (1443, 14754), (2459, 8658), (2886, 7377), (4329, 4918)]