19891274

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:135

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 16880566

約数列:

[1, 2, 13, 23, 26, 29, 31, 37, 46, 58, 62, 74, 299, 377, 403, 481, 598, 667, 713, 754, 806, 851, 899, 962, 1073, 1147, 1334, 1426, 1702, 1798, 2146, 2294, 8671, 9269, 11063, 11687, 13949, 14911, 17342, 18538, 20677, 22126, 23374, 24679, 26381, 27898, 29822, 33263, 41354, 49358, 52762, 66526, 268801, 320827, 342953, 432419, 537602, 641654, 685906, 765049, 864838, 1530098, 9945637, 19891274]

約数ペア:

[(1, 19891274), (2, 9945637), (13, 1530098), (23, 864838), (26, 765049), (29, 685906), (31, 641654), (37, 537602), (46, 432419), (58, 342953), (62, 320827), (74, 268801), (299, 66526), (377, 52762), (403, 49358), (481, 41354), (598, 33263), (667, 29822), (713, 27898), (754, 26381), (806, 24679), (851, 23374), (899, 22126), (962, 20677), (1073, 18538), (1147, 17342), (1334, 14911), (1426, 13949), (1702, 11687), (1798, 11063), (2146, 9269), (2294, 8671)]