20663398

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 38905920

約数和(自身を除く): 18242522

約数列:

[1, 2, 7, 14, 17, 34, 49, 79, 98, 119, 157, 158, 238, 314, 553, 833, 1099, 1106, 1343, 1666, 2198, 2669, 2686, 3871, 5338, 7693, 7742, 9401, 12403, 15386, 18683, 18802, 24806, 37366, 65807, 86821, 130781, 131614, 173642, 210851, 261562, 421702, 607747, 1215494, 1475957, 2951914, 10331699, 20663398]

約数ペア:

[(1, 20663398), (2, 10331699), (7, 2951914), (14, 1475957), (17, 1215494), (34, 607747), (49, 421702), (79, 261562), (98, 210851), (119, 173642), (157, 131614), (158, 130781), (238, 86821), (314, 65807), (553, 37366), (833, 24806), (1099, 18802), (1106, 18683), (1343, 15386), (1666, 12403), (2198, 9401), (2669, 7742), (2686, 7693), (3871, 5338)]