18700316

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{631}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 33976320

約数和(自身を除く): 15276004

約数列:

[1, 2, 4, 31, 62, 124, 239, 478, 631, 956, 1262, 2524, 7409, 14818, 19561, 29636, 39122, 78244, 150809, 301618, 603236, 4675079, 9350158, 18700316]

約数ペア:

[(1, 18700316), (2, 9350158), (4, 4675079), (31, 603236), (62, 301618), (124, 150809), (239, 78244), (478, 39122), (631, 29636), (956, 19561), (1262, 14818), (2524, 7409)]