20637136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2111}}^1$

素因数の和:2179

約数の個数: 40

約数和(自身を含む): 43997184

約数和(自身を除く): 23360048

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 2111, 2444, 4222, 4888, 8444, 9776, 16888, 27443, 33776, 54886, 99217, 109772, 198434, 219544, 396868, 439088, 793736, 1289821, 1587472, 2579642, 5159284, 10318568, 20637136]

約数ペア:

[(1, 20637136), (2, 10318568), (4, 5159284), (8, 2579642), (13, 1587472), (16, 1289821), (26, 793736), (47, 439088), (52, 396868), (94, 219544), (104, 198434), (188, 109772), (208, 99217), (376, 54886), (611, 33776), (752, 27443), (1222, 16888), (2111, 9776), (2444, 8444), (4222, 4888)]