20409676

素因数分解:

$2^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1031}}^1$

素因数の和:1150

約数の個数: 36

約数和(自身を含む): 42000336

約数和(自身を除く): 21590660

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 101, 196, 202, 404, 707, 1031, 1414, 2062, 2828, 4124, 4949, 7217, 9898, 14434, 19796, 28868, 50519, 101038, 104131, 202076, 208262, 416524, 728917, 1457834, 2915668, 5102419, 10204838, 20409676]

約数ペア:

[(1, 20409676), (2, 10204838), (4, 5102419), (7, 2915668), (14, 1457834), (28, 728917), (49, 416524), (98, 208262), (101, 202076), (196, 104131), (202, 101038), (404, 50519), (707, 28868), (1031, 19796), (1414, 14434), (2062, 9898), (2828, 7217), (4124, 4949)]