18712551

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 29901312

約数和(自身を除く): 11188761

約数列:

[1, 3, 11, 13, 33, 39, 53, 143, 159, 429, 583, 689, 823, 1749, 2067, 2469, 7579, 9053, 10699, 22737, 27159, 32097, 43619, 117689, 130857, 353067, 479809, 567047, 1439427, 1701141, 6237517, 18712551]

約数ペア:

[(1, 18712551), (3, 6237517), (11, 1701141), (13, 1439427), (33, 567047), (39, 479809), (53, 353067), (143, 130857), (159, 117689), (429, 43619), (583, 32097), (689, 27159), (823, 22737), (1749, 10699), (2067, 9053), (2469, 7579)]