20271212

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 38860416

約数和(自身を除く): 18589204

約数列:

[1, 2, 4, 13, 26, 52, 157, 169, 191, 314, 338, 382, 628, 676, 764, 2041, 2483, 4082, 4966, 8164, 9932, 26533, 29987, 32279, 53066, 59974, 64558, 106132, 119948, 129116, 389831, 779662, 1559324, 5067803, 10135606, 20271212]

約数ペア:

[(1, 20271212), (2, 10135606), (4, 5067803), (13, 1559324), (26, 779662), (52, 389831), (157, 129116), (169, 119948), (191, 106132), (314, 64558), (338, 59974), (382, 53066), (628, 32279), (676, 29987), (764, 26533), (2041, 9932), (2483, 8164), (4082, 4966)]