20884515

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 35512320

約数和(自身を除く): 14627805

約数列:

[1, 3, 5, 15, 19, 57, 95, 127, 285, 381, 577, 635, 1731, 1905, 2413, 2885, 7239, 8655, 10963, 12065, 32889, 36195, 54815, 73279, 164445, 219837, 366395, 1099185, 1392301, 4176903, 6961505, 20884515]

約数ペア:

[(1, 20884515), (3, 6961505), (5, 4176903), (15, 1392301), (19, 1099185), (57, 366395), (95, 219837), (127, 164445), (285, 73279), (381, 54815), (577, 36195), (635, 32889), (1731, 12065), (1905, 10963), (2413, 8655), (2885, 7239)]