28144809

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2389}}^1$

素因数の和:2430

約数の個数: 48

約数和(自身を含む): 53688960

約数和(自身を除く): 25544151

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 357, 561, 693, 1071, 1309, 1683, 2389, 3927, 7167, 11781, 16723, 21501, 26279, 40613, 50169, 78837, 121839, 150507, 183953, 236511, 284291, 365517, 446743, 551859, 852873, 1340229, 1655577, 2558619, 3127201, 4020687, 9381603, 28144809]

約数ペア:

[(1, 28144809), (3, 9381603), (7, 4020687), (9, 3127201), (11, 2558619), (17, 1655577), (21, 1340229), (33, 852873), (51, 551859), (63, 446743), (77, 365517), (99, 284291), (119, 236511), (153, 183953), (187, 150507), (231, 121839), (357, 78837), (561, 50169), (693, 40613), (1071, 26279), (1309, 21501), (1683, 16723), (2389, 11781), (3927, 7167)]