21311230

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1788

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 19318370

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 1709, 2494, 3418, 6235, 8545, 12470, 17090, 49561, 73487, 99122, 146974, 247805, 367435, 495610, 734870, 2131123, 4262246, 10655615, 21311230]

約数ペア:

[(1, 21311230), (2, 10655615), (5, 4262246), (10, 2131123), (29, 734870), (43, 495610), (58, 367435), (86, 247805), (145, 146974), (215, 99122), (290, 73487), (430, 49561), (1247, 17090), (1709, 12470), (2494, 8545), (3418, 6235)]