20977788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4637}}^1$

素因数の和:4686

約数の個数: 48

約数和(自身を含む): 54542880

約数和(自身を除く): 33565092

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 116, 156, 174, 348, 377, 754, 1131, 1508, 2262, 4524, 4637, 9274, 13911, 18548, 27822, 55644, 60281, 120562, 134473, 180843, 241124, 268946, 361686, 403419, 537892, 723372, 806838, 1613676, 1748149, 3496298, 5244447, 6992596, 10488894, 20977788]

約数ペア:

[(1, 20977788), (2, 10488894), (3, 6992596), (4, 5244447), (6, 3496298), (12, 1748149), (13, 1613676), (26, 806838), (29, 723372), (39, 537892), (52, 403419), (58, 361686), (78, 268946), (87, 241124), (116, 180843), (156, 134473), (174, 120562), (348, 60281), (377, 55644), (754, 27822), (1131, 18548), (1508, 13911), (2262, 9274), (4524, 4637)]