21249676

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 45561600

約数和(自身を除く): 24311924

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 59, 76, 118, 133, 236, 266, 413, 532, 677, 826, 1121, 1354, 1652, 2242, 2708, 4484, 4739, 7847, 9478, 12863, 15694, 18956, 25726, 31388, 39943, 51452, 79886, 90041, 159772, 180082, 279601, 360164, 559202, 758917, 1118404, 1517834, 3035668, 5312419, 10624838, 21249676]

約数ペア:

[(1, 21249676), (2, 10624838), (4, 5312419), (7, 3035668), (14, 1517834), (19, 1118404), (28, 758917), (38, 559202), (59, 360164), (76, 279601), (118, 180082), (133, 159772), (236, 90041), (266, 79886), (413, 51452), (532, 39943), (677, 31388), (826, 25726), (1121, 18956), (1354, 15694), (1652, 12863), (2242, 9478), (2708, 7847), (4484, 4739)]