21294525

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{863}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 41140224

約数和(自身を除く): 19845699

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 47, 75, 105, 141, 175, 235, 329, 525, 705, 863, 987, 1175, 1645, 2589, 3525, 4315, 4935, 6041, 8225, 12945, 18123, 21575, 24675, 30205, 40561, 64725, 90615, 121683, 151025, 202805, 283927, 453075, 608415, 851781, 1014025, 1419635, 3042075, 4258905, 7098175, 21294525]

約数ペア:

[(1, 21294525), (3, 7098175), (5, 4258905), (7, 3042075), (15, 1419635), (21, 1014025), (25, 851781), (35, 608415), (47, 453075), (75, 283927), (105, 202805), (141, 151025), (175, 121683), (235, 90615), (329, 64725), (525, 40561), (705, 30205), (863, 24675), (987, 21575), (1175, 18123), (1645, 12945), (2589, 8225), (3525, 6041), (4315, 4935)]