21025125

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1699}}^1$

素因数の和:1731

約数の個数: 48

約数和(自身を含む): 41371200

約数和(自身を除く): 20346075

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1125, 1375, 1699, 2475, 4125, 5097, 8495, 12375, 15291, 18689, 25485, 42475, 56067, 76455, 93445, 127425, 168201, 212375, 280335, 382275, 467225, 637125, 841005, 1401675, 1911375, 2336125, 4205025, 7008375, 21025125]

約数ペア:

[(1, 21025125), (3, 7008375), (5, 4205025), (9, 2336125), (11, 1911375), (15, 1401675), (25, 841005), (33, 637125), (45, 467225), (55, 382275), (75, 280335), (99, 212375), (125, 168201), (165, 127425), (225, 93445), (275, 76455), (375, 56067), (495, 42475), (825, 25485), (1125, 18689), (1375, 15291), (1699, 12375), (2475, 8495), (4125, 5097)]