21970360

素因数分解:

$2^3\times 5^1\times {\mathrm{549259}}^1$

素因数の和:549270

約数の個数: 16

約数和(自身を含む): 49433400

約数和(自身を除く): 27463040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549259, 1098518, 2197036, 2746295, 4394072, 5492590, 10985180, 21970360]

約数ペア:

[(1, 21970360), (2, 10985180), (4, 5492590), (5, 4394072), (8, 2746295), (10, 2197036), (20, 1098518), (40, 549259)]