21772725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 39289152

約数和(自身を除く): 17516427

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 137, 163, 195, 325, 411, 489, 685, 815, 975, 1781, 2055, 2119, 2445, 3425, 4075, 5343, 6357, 8905, 10275, 10595, 12225, 22331, 26715, 31785, 44525, 52975, 66993, 111655, 133575, 158925, 290303, 334965, 558275, 870909, 1451515, 1674825, 4354545, 7257575, 21772725]

約数ペア:

[(1, 21772725), (3, 7257575), (5, 4354545), (13, 1674825), (15, 1451515), (25, 870909), (39, 558275), (65, 334965), (75, 290303), (137, 158925), (163, 133575), (195, 111655), (325, 66993), (411, 52975), (489, 44525), (685, 31785), (815, 26715), (975, 22331), (1781, 12225), (2055, 10595), (2119, 10275), (2445, 8905), (3425, 6357), (4075, 5343)]