21399036

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{367}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 51684864

約数和(自身を除く): 30285828

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 113, 129, 172, 226, 258, 339, 367, 452, 516, 678, 734, 1101, 1356, 1468, 2202, 4404, 4859, 9718, 14577, 15781, 19436, 29154, 31562, 41471, 47343, 58308, 63124, 82942, 94686, 124413, 165884, 189372, 248826, 497652, 1783253, 3566506, 5349759, 7133012, 10699518, 21399036]

約数ペア:

[(1, 21399036), (2, 10699518), (3, 7133012), (4, 5349759), (6, 3566506), (12, 1783253), (43, 497652), (86, 248826), (113, 189372), (129, 165884), (172, 124413), (226, 94686), (258, 82942), (339, 63124), (367, 58308), (452, 47343), (516, 41471), (678, 31562), (734, 29154), (1101, 19436), (1356, 15781), (1468, 14577), (2202, 9718), (4404, 4859)]