18666544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5279}}^1$

素因数の和:5317

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 22580816

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5279, 10558, 21116, 42232, 68627, 84464, 89743, 137254, 179486, 274508, 358972, 549016, 717944, 1098032, 1166659, 1435888, 2333318, 4666636, 9333272, 18666544]

約数ペア:

[(1, 18666544), (2, 9333272), (4, 4666636), (8, 2333318), (13, 1435888), (16, 1166659), (17, 1098032), (26, 717944), (34, 549016), (52, 358972), (68, 274508), (104, 179486), (136, 137254), (208, 89743), (221, 84464), (272, 68627), (442, 42232), (884, 21116), (1768, 10558), (3536, 5279)]