18902416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4783}}^1$

素因数の和:4823

約数の個数: 40

約数和(自身を含む): 41525120

約数和(自身を除く): 22622704

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4783, 9566, 19132, 38264, 62179, 76528, 90877, 124358, 181754, 248716, 363508, 497432, 727016, 994864, 1181401, 1454032, 2362802, 4725604, 9451208, 18902416]

約数ペア:

[(1, 18902416), (2, 9451208), (4, 4725604), (8, 2362802), (13, 1454032), (16, 1181401), (19, 994864), (26, 727016), (38, 497432), (52, 363508), (76, 248716), (104, 181754), (152, 124358), (208, 90877), (247, 76528), (304, 62179), (494, 38264), (988, 19132), (1976, 9566), (3952, 4783)]