20694219

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:74

約数の個数: 60

約数和(自身を含む): 36905976

約数和(自身を除く): 16211757

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 169, 221, 273, 343, 357, 507, 637, 663, 833, 1029, 1183, 1547, 1911, 2401, 2499, 2873, 3549, 4459, 4641, 5831, 7203, 8281, 8619, 10829, 13377, 17493, 20111, 24843, 31213, 32487, 40817, 57967, 60333, 75803, 93639, 122451, 140777, 173901, 227409, 405769, 422331, 530621, 985439, 1217307, 1591863, 2956317, 6898073, 20694219]

約数ペア:

[(1, 20694219), (3, 6898073), (7, 2956317), (13, 1591863), (17, 1217307), (21, 985439), (39, 530621), (49, 422331), (51, 405769), (91, 227409), (119, 173901), (147, 140777), (169, 122451), (221, 93639), (273, 75803), (343, 60333), (357, 57967), (507, 40817), (637, 32487), (663, 31213), (833, 24843), (1029, 20111), (1183, 17493), (1547, 13377), (1911, 10829), (2401, 8619), (2499, 8281), (2873, 7203), (3549, 5831), (4459, 4641)]