21035175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 40235520

約数和(自身を除く): 19200345

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 103, 105, 175, 309, 389, 515, 525, 721, 1167, 1545, 1945, 2163, 2575, 2723, 3605, 5835, 7725, 8169, 9725, 10815, 13615, 18025, 29175, 40067, 40845, 54075, 68075, 120201, 200335, 204225, 280469, 601005, 841407, 1001675, 1402345, 3005025, 4207035, 7011725, 21035175]

約数ペア:

[(1, 21035175), (3, 7011725), (5, 4207035), (7, 3005025), (15, 1402345), (21, 1001675), (25, 841407), (35, 601005), (75, 280469), (103, 204225), (105, 200335), (175, 120201), (309, 68075), (389, 54075), (515, 40845), (525, 40067), (721, 29175), (1167, 18025), (1545, 13615), (1945, 10815), (2163, 9725), (2575, 8169), (2723, 7725), (3605, 5835)]