18529904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1245

約数の個数: 40

約数和(自身を含む): 38366592

約数和(自身を除く): 19836688

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1171, 1978, 2342, 3956, 4684, 7912, 9368, 15824, 18736, 26933, 50353, 53866, 100706, 107732, 201412, 215464, 402824, 430928, 805648, 1158119, 2316238, 4632476, 9264952, 18529904]

約数ペア:

[(1, 18529904), (2, 9264952), (4, 4632476), (8, 2316238), (16, 1158119), (23, 805648), (43, 430928), (46, 402824), (86, 215464), (92, 201412), (172, 107732), (184, 100706), (344, 53866), (368, 50353), (688, 26933), (989, 18736), (1171, 15824), (1978, 9368), (2342, 7912), (3956, 4684)]