13209999

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 20428800

約数和(自身を除く): 7218801

約数列:

[1, 3, 11, 31, 33, 37, 93, 111, 341, 349, 407, 1023, 1047, 1147, 1221, 3441, 3839, 10819, 11517, 12617, 12913, 32457, 37851, 38739, 119009, 142043, 357027, 400303, 426129, 1200909, 4403333, 13209999]

約数ペア:

[(1, 13209999), (3, 4403333), (11, 1200909), (31, 426129), (33, 400303), (37, 357027), (93, 142043), (111, 119009), (341, 38739), (349, 37851), (407, 32457), (1023, 12913), (1047, 12617), (1147, 11517), (1221, 10819), (3441, 3839)]