21813801

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1439}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 30228480

約数和(自身を除く): 8414679

約数列:

[1, 3, 31, 93, 163, 489, 1439, 4317, 5053, 15159, 44609, 133827, 234557, 703671, 7271267, 21813801]

約数ペア:

[(1, 21813801), (3, 7271267), (31, 703671), (93, 234557), (163, 133827), (489, 44609), (1439, 15159), (4317, 5053)]