18784048

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 39292128

約数和(自身を除く): 20508080

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1303, 1802, 2606, 3604, 5212, 7208, 10424, 14416, 20848, 22151, 44302, 69059, 88604, 138118, 177208, 276236, 354416, 552472, 1104944, 1174003, 2348006, 4696012, 9392024, 18784048]

約数ペア:

[(1, 18784048), (2, 9392024), (4, 4696012), (8, 2348006), (16, 1174003), (17, 1104944), (34, 552472), (53, 354416), (68, 276236), (106, 177208), (136, 138118), (212, 88604), (272, 69059), (424, 44302), (848, 22151), (901, 20848), (1303, 14416), (1802, 10424), (2606, 7208), (3604, 5212)]