18408258

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 43804800

約数和(自身を除く): 25396542

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 239, 389, 478, 717, 778, 1167, 1434, 2151, 2334, 2629, 3501, 4279, 4302, 5258, 7002, 7887, 8558, 12837, 15774, 23661, 25674, 38511, 47322, 77022, 92971, 185942, 278913, 557826, 836739, 1022681, 1673478, 2045362, 3068043, 6136086, 9204129, 18408258]

約数ペア:

[(1, 18408258), (2, 9204129), (3, 6136086), (6, 3068043), (9, 2045362), (11, 1673478), (18, 1022681), (22, 836739), (33, 557826), (66, 278913), (99, 185942), (198, 92971), (239, 77022), (389, 47322), (478, 38511), (717, 25674), (778, 23661), (1167, 15774), (1434, 12837), (2151, 8558), (2334, 7887), (2629, 7002), (3501, 5258), (4279, 4302)]