18877326

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 43309056

約数和(自身を除く): 24431730

約数列:

[1, 2, 3, 6, 13, 26, 31, 37, 39, 62, 74, 78, 93, 111, 186, 211, 222, 403, 422, 481, 633, 806, 962, 1147, 1209, 1266, 1443, 2294, 2418, 2743, 2886, 3441, 5486, 6541, 6882, 7807, 8229, 13082, 14911, 15614, 16458, 19623, 23421, 29822, 39246, 44733, 46842, 85033, 89466, 101491, 170066, 202982, 242017, 255099, 304473, 484034, 510198, 608946, 726051, 1452102, 3146221, 6292442, 9438663, 18877326]

約数ペア:

[(1, 18877326), (2, 9438663), (3, 6292442), (6, 3146221), (13, 1452102), (26, 726051), (31, 608946), (37, 510198), (39, 484034), (62, 304473), (74, 255099), (78, 242017), (93, 202982), (111, 170066), (186, 101491), (211, 89466), (222, 85033), (403, 46842), (422, 44733), (481, 39246), (633, 29822), (806, 23421), (962, 19623), (1147, 16458), (1209, 15614), (1266, 14911), (1443, 13082), (2294, 8229), (2418, 7807), (2743, 6882), (2886, 6541), (3441, 5486)]