131405974

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1\times {\mathrm{433}}^1$

素因数の和:904

約数の個数: 32

約数和(自身を含む): 230610240

約数和(自身を除く): 99204266

約数列:

[1, 2, 7, 14, 53, 106, 371, 409, 433, 742, 818, 866, 2863, 3031, 5726, 6062, 21677, 22949, 43354, 45898, 151739, 160643, 177097, 303478, 321286, 354194, 1239679, 2479358, 9386141, 18772282, 65702987, 131405974]

約数ペア:

[(1, 131405974), (2, 65702987), (7, 18772282), (14, 9386141), (53, 2479358), (106, 1239679), (371, 354194), (409, 321286), (433, 303478), (742, 177097), (818, 160643), (866, 151739), (2863, 45898), (3031, 43354), (5726, 22949), (6062, 21677)]