19091212

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 39674880

約数和(自身を除く): 20583668

約数列:

[1, 2, 4, 7, 14, 28, 47, 89, 94, 163, 178, 188, 326, 329, 356, 623, 652, 658, 1141, 1246, 1316, 2282, 2492, 4183, 4564, 7661, 8366, 14507, 15322, 16732, 29014, 29281, 30644, 53627, 58028, 58562, 101549, 107254, 117124, 203098, 214508, 406196, 681829, 1363658, 2727316, 4772803, 9545606, 19091212]

約数ペア:

[(1, 19091212), (2, 9545606), (4, 4772803), (7, 2727316), (14, 1363658), (28, 681829), (47, 406196), (89, 214508), (94, 203098), (163, 117124), (178, 107254), (188, 101549), (326, 58562), (329, 58028), (356, 53627), (623, 30644), (652, 29281), (658, 29014), (1141, 16732), (1246, 15322), (1316, 14507), (2282, 8366), (2492, 7661), (4183, 4564)]