19864806

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 46158336

約数和(自身を除く): 26293530

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 71, 78, 102, 142, 211, 213, 221, 422, 426, 442, 633, 663, 923, 1207, 1266, 1326, 1846, 2414, 2743, 2769, 3587, 3621, 5486, 5538, 7174, 7242, 8229, 10761, 14981, 15691, 16458, 21522, 29962, 31382, 44943, 46631, 47073, 89886, 93262, 94146, 139893, 194753, 254677, 279786, 389506, 509354, 584259, 764031, 1168518, 1528062, 3310801, 6621602, 9932403, 19864806]

約数ペア:

[(1, 19864806), (2, 9932403), (3, 6621602), (6, 3310801), (13, 1528062), (17, 1168518), (26, 764031), (34, 584259), (39, 509354), (51, 389506), (71, 279786), (78, 254677), (102, 194753), (142, 139893), (211, 94146), (213, 93262), (221, 89886), (422, 47073), (426, 46631), (442, 44943), (633, 31382), (663, 29962), (923, 21522), (1207, 16458), (1266, 15691), (1326, 14981), (1846, 10761), (2414, 8229), (2743, 7242), (2769, 7174), (3587, 5538), (3621, 5486)]