21319452

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7691}}^1$

素因数の和:7719

約数の個数: 72

約数和(自身を含む): 67197312

約数和(自身を除く): 45877860

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7691, 15382, 23073, 30764, 46146, 53837, 69219, 84601, 92292, 107674, 138438, 161511, 169202, 215348, 253803, 276876, 323022, 338404, 484533, 507606, 592207, 646044, 761409, 969066, 1015212, 1184414, 1522818, 1776621, 1938132, 2368828, 3045636, 3553242, 5329863, 7106484, 10659726, 21319452]

約数ペア:

[(1, 21319452), (2, 10659726), (3, 7106484), (4, 5329863), (6, 3553242), (7, 3045636), (9, 2368828), (11, 1938132), (12, 1776621), (14, 1522818), (18, 1184414), (21, 1015212), (22, 969066), (28, 761409), (33, 646044), (36, 592207), (42, 507606), (44, 484533), (63, 338404), (66, 323022), (77, 276876), (84, 253803), (99, 215348), (126, 169202), (132, 161511), (154, 138438), (198, 107674), (231, 92292), (252, 84601), (308, 69219), (396, 53837), (462, 46146), (693, 30764), (924, 23073), (1386, 15382), (2772, 7691)]