19355889

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 31360000

約数和(自身を除く): 12004111

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 349, 399, 417, 973, 1047, 2443, 2641, 2919, 6631, 7329, 7923, 18487, 19893, 46417, 48511, 55461, 139251, 145533, 339577, 921709, 1018731, 2765127, 6451963, 19355889]

約数ペア:

[(1, 19355889), (3, 6451963), (7, 2765127), (19, 1018731), (21, 921709), (57, 339577), (133, 145533), (139, 139251), (349, 55461), (399, 48511), (417, 46417), (973, 19893), (1047, 18487), (2443, 7923), (2641, 7329), (2919, 6631)]