21781888

素因数分解:

$2^7\times {\mathrm{379}}^1\times {\mathrm{449}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 43605000

約数和(自身を除く): 21823112

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 379, 449, 758, 898, 1516, 1796, 3032, 3592, 6064, 7184, 12128, 14368, 24256, 28736, 48512, 57472, 170171, 340342, 680684, 1361368, 2722736, 5445472, 10890944, 21781888]

約数ペア:

[(1, 21781888), (2, 10890944), (4, 5445472), (8, 2722736), (16, 1361368), (32, 680684), (64, 340342), (128, 170171), (379, 57472), (449, 48512), (758, 28736), (898, 24256), (1516, 14368), (1796, 12128), (3032, 7184), (3592, 6064)]