20121992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2137}}^1$

素因数の和:2261

約数の個数: 32

約数和(自身を含む): 41562720

約数和(自身を除く): 21440728

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 107, 214, 428, 856, 1177, 2137, 2354, 4274, 4708, 8548, 9416, 17096, 23507, 47014, 94028, 188056, 228659, 457318, 914636, 1829272, 2515249, 5030498, 10060996, 20121992]

約数ペア:

[(1, 20121992), (2, 10060996), (4, 5030498), (8, 2515249), (11, 1829272), (22, 914636), (44, 457318), (88, 228659), (107, 188056), (214, 94028), (428, 47014), (856, 23507), (1177, 17096), (2137, 9416), (2354, 8548), (4274, 4708)]