20163485251

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1\times {\mathrm{977}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 25567345440

約数和(自身を除く): 5403860189

約数列:

[1, 7, 13, 49, 91, 179, 181, 637, 977, 1253, 1267, 2327, 2353, 6839, 8771, 8869, 12701, 16289, 16471, 32399, 47873, 88907, 114023, 115297, 174883, 176837, 226793, 421187, 622349, 1224181, 1237859, 1587551, 2273479, 2298881, 2948309, 8569267, 8665013, 15914353, 16092167, 20638163, 31653823, 111400471, 112645169, 221576761, 411499699, 1551037327, 2880497893, 20163485251]

約数ペア:

[(1, 20163485251), (7, 2880497893), (13, 1551037327), (49, 411499699), (91, 221576761), (179, 112645169), (181, 111400471), (637, 31653823), (977, 20638163), (1253, 16092167), (1267, 15914353), (2327, 8665013), (2353, 8569267), (6839, 2948309), (8771, 2298881), (8869, 2273479), (12701, 1587551), (16289, 1237859), (16471, 1224181), (32399, 622349), (47873, 421187), (88907, 226793), (114023, 176837), (115297, 174883)]