18667684

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{487}}^1$

素因数の和:572

約数の個数: 36

約数和(自身を含む): 38450496

約数和(自身を除く): 19782812

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 487, 518, 974, 1036, 1369, 1948, 2738, 3409, 5476, 6818, 9583, 13636, 18019, 19166, 36038, 38332, 72076, 126133, 252266, 504532, 666703, 1333406, 2666812, 4666921, 9333842, 18667684]

約数ペア:

[(1, 18667684), (2, 9333842), (4, 4666921), (7, 2666812), (14, 1333406), (28, 666703), (37, 504532), (74, 252266), (148, 126133), (259, 72076), (487, 38332), (518, 36038), (974, 19166), (1036, 18019), (1369, 13636), (1948, 9583), (2738, 6818), (3409, 5476)]