20529444

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 53125632

約数和(自身を除く): 32596188

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 169, 191, 212, 318, 338, 382, 507, 573, 636, 676, 689, 764, 1014, 1146, 1378, 2028, 2067, 2292, 2483, 2756, 4134, 4966, 7449, 8268, 8957, 9932, 10123, 14898, 17914, 20246, 26871, 29796, 30369, 32279, 35828, 40492, 53742, 60738, 64558, 96837, 107484, 121476, 129116, 131599, 193674, 263198, 387348, 394797, 526396, 789594, 1579188, 1710787, 3421574, 5132361, 6843148, 10264722, 20529444]

約数ペア:

[(1, 20529444), (2, 10264722), (3, 6843148), (4, 5132361), (6, 3421574), (12, 1710787), (13, 1579188), (26, 789594), (39, 526396), (52, 394797), (53, 387348), (78, 263198), (106, 193674), (156, 131599), (159, 129116), (169, 121476), (191, 107484), (212, 96837), (318, 64558), (338, 60738), (382, 53742), (507, 40492), (573, 35828), (636, 32279), (676, 30369), (689, 29796), (764, 26871), (1014, 20246), (1146, 17914), (1378, 14898), (2028, 10123), (2067, 9932), (2292, 8957), (2483, 8268), (2756, 7449), (4134, 4966)]