21860144

素因数分解:

$2^4\times {\mathrm{293}}^1\times {\mathrm{4663}}^1$

素因数の和:4964

約数の個数: 20

約数和(自身を含む): 42507696

約数和(自身を除く): 20647552

約数列:

[1, 2, 4, 8, 16, 293, 586, 1172, 2344, 4663, 4688, 9326, 18652, 37304, 74608, 1366259, 2732518, 5465036, 10930072, 21860144]

約数ペア:

[(1, 21860144), (2, 10930072), (4, 5465036), (8, 2732518), (16, 1366259), (293, 74608), (586, 37304), (1172, 18652), (2344, 9326), (4663, 4688)]