51187905

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12781}}^1$

素因数の和:12881

約数の個数: 24

約数和(自身を含む): 89729640

約数和(自身を除く): 38541735

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 12781, 38343, 63905, 115029, 191715, 575145, 1137509, 3412527, 5687545, 10237581, 17062635, 51187905]

約数ペア:

[(1, 51187905), (3, 17062635), (5, 10237581), (9, 5687545), (15, 3412527), (45, 1137509), (89, 575145), (267, 191715), (445, 115029), (801, 63905), (1335, 38343), (4005, 12781)]