21910180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35339}}^1$

素因数の和:35379

約数の個数: 24

約数和(自身を含む): 47496960

約数和(自身を除く): 25586780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35339, 70678, 141356, 176695, 353390, 706780, 1095509, 2191018, 4382036, 5477545, 10955090, 21910180]

約数ペア:

[(1, 21910180), (2, 10955090), (4, 5477545), (5, 4382036), (10, 2191018), (20, 1095509), (31, 706780), (62, 353390), (124, 176695), (155, 141356), (310, 70678), (620, 35339)]