20953808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68927}}^1$

素因数の和:68954

約数の個数: 20

約数和(自身を含む): 42735360

約数和(自身を除く): 21781552

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68927, 137854, 275708, 551416, 1102832, 1309613, 2619226, 5238452, 10476904, 20953808]

約数ペア:

[(1, 20953808), (2, 10476904), (4, 5238452), (8, 2619226), (16, 1309613), (19, 1102832), (38, 551416), (76, 275708), (152, 137854), (304, 68927)]