20551810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2281}}^1$

素因数の和:2358

約数の個数: 32

約数和(自身を含む): 39925872

約数和(自身を除く): 19374062

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2281, 4505, 4562, 9010, 11405, 22810, 38777, 77554, 120893, 193885, 241786, 387770, 604465, 1208930, 2055181, 4110362, 10275905, 20551810]

約数ペア:

[(1, 20551810), (2, 10275905), (5, 4110362), (10, 2055181), (17, 1208930), (34, 604465), (53, 387770), (85, 241786), (106, 193885), (170, 120893), (265, 77554), (530, 38777), (901, 22810), (1802, 11405), (2281, 9010), (4505, 4562)]