18968384

素因数分解:

$2^6\times {\mathrm{19}}^2\times {\mathrm{821}}^1$

素因数の和:871

約数の個数: 42

約数和(自身を含む): 39774114

約数和(自身を除く): 20805730

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 361, 608, 722, 821, 1216, 1444, 1642, 2888, 3284, 5776, 6568, 11552, 13136, 15599, 23104, 26272, 31198, 52544, 62396, 124792, 249584, 296381, 499168, 592762, 998336, 1185524, 2371048, 4742096, 9484192, 18968384]

約数ペア:

[(1, 18968384), (2, 9484192), (4, 4742096), (8, 2371048), (16, 1185524), (19, 998336), (32, 592762), (38, 499168), (64, 296381), (76, 249584), (152, 124792), (304, 62396), (361, 52544), (608, 31198), (722, 26272), (821, 23104), (1216, 15599), (1444, 13136), (1642, 11552), (2888, 6568), (3284, 5776)]