20019164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{541}}^1$

素因数の和:614

約数の個数: 36

約数和(自身を含む): 39654888

約数和(自身を除く): 19635724

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 541, 638, 841, 1082, 1276, 1682, 2164, 3364, 5951, 9251, 11902, 15689, 18502, 23804, 31378, 37004, 62756, 172579, 345158, 454981, 690316, 909962, 1819924, 5004791, 10009582, 20019164]

約数ペア:

[(1, 20019164), (2, 10009582), (4, 5004791), (11, 1819924), (22, 909962), (29, 690316), (44, 454981), (58, 345158), (116, 172579), (319, 62756), (541, 37004), (638, 31378), (841, 23804), (1082, 18502), (1276, 15689), (1682, 11902), (2164, 9251), (3364, 5951)]