18713212

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21559}}^1$

素因数の和:21601

約数の個数: 24

約数和(自身を含む): 38635520

約数和(自身を除く): 19922308

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21559, 43118, 86236, 150913, 301826, 603652, 668329, 1336658, 2673316, 4678303, 9356606, 18713212]

約数ペア:

[(1, 18713212), (2, 9356606), (4, 4678303), (7, 2673316), (14, 1336658), (28, 668329), (31, 603652), (62, 301826), (124, 150913), (217, 86236), (434, 43118), (868, 21559)]