17985891

素因数分解:

$3^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{227}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 30654144

約数和(自身を除く): 12668253

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 227, 231, 343, 539, 681, 1029, 1589, 1617, 2401, 2497, 3773, 4767, 7203, 7491, 11123, 11319, 17479, 26411, 33369, 52437, 77861, 79233, 122353, 233583, 367059, 545027, 856471, 1635081, 2569413, 5995297, 17985891]

約数ペア:

[(1, 17985891), (3, 5995297), (7, 2569413), (11, 1635081), (21, 856471), (33, 545027), (49, 367059), (77, 233583), (147, 122353), (227, 79233), (231, 77861), (343, 52437), (539, 33369), (681, 26411), (1029, 17479), (1589, 11319), (1617, 11123), (2401, 7491), (2497, 7203), (3773, 4767)]