21907960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23813}}^1$

素因数の和:23847

約数の個数: 32

約数和(自身を含む): 51438240

約数和(自身を除く): 29530280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23813, 47626, 95252, 119065, 190504, 238130, 476260, 547699, 952520, 1095398, 2190796, 2738495, 4381592, 5476990, 10953980, 21907960]

約数ペア:

[(1, 21907960), (2, 10953980), (4, 5476990), (5, 4381592), (8, 2738495), (10, 2190796), (20, 1095398), (23, 952520), (40, 547699), (46, 476260), (92, 238130), (115, 190504), (184, 119065), (230, 95252), (460, 47626), (920, 23813)]