19710184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2399}}^1$

素因数の和:2497

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 20609816

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 2399, 4108, 4798, 8216, 9596, 19192, 31187, 62374, 124748, 189521, 249496, 379042, 758084, 1516168, 2463773, 4927546, 9855092, 19710184]

約数ペア:

[(1, 19710184), (2, 9855092), (4, 4927546), (8, 2463773), (13, 1516168), (26, 758084), (52, 379042), (79, 249496), (104, 189521), (158, 124748), (316, 62374), (632, 31187), (1027, 19192), (2054, 9596), (2399, 8216), (4108, 4798)]