18071008

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 38054016

約数和(自身を除く): 19983008

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 86, 92, 172, 184, 344, 368, 571, 688, 736, 989, 1142, 1376, 1978, 2284, 3956, 4568, 7912, 9136, 13133, 15824, 18272, 24553, 26266, 31648, 49106, 52532, 98212, 105064, 196424, 210128, 392848, 420256, 564719, 785696, 1129438, 2258876, 4517752, 9035504, 18071008]

約数ペア:

[(1, 18071008), (2, 9035504), (4, 4517752), (8, 2258876), (16, 1129438), (23, 785696), (32, 564719), (43, 420256), (46, 392848), (86, 210128), (92, 196424), (172, 105064), (184, 98212), (344, 52532), (368, 49106), (571, 31648), (688, 26266), (736, 24553), (989, 18272), (1142, 15824), (1376, 13133), (1978, 9136), (2284, 7912), (3956, 4568)]