21812872

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{563}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 20825528

約数列:

[1, 2, 4, 8, 29, 58, 116, 167, 232, 334, 563, 668, 1126, 1336, 2252, 4504, 4843, 9686, 16327, 19372, 32654, 38744, 65308, 94021, 130616, 188042, 376084, 752168, 2726609, 5453218, 10906436, 21812872]

約数ペア:

[(1, 21812872), (2, 10906436), (4, 5453218), (8, 2726609), (29, 752168), (58, 376084), (116, 188042), (167, 130616), (232, 94021), (334, 65308), (563, 38744), (668, 32654), (1126, 19372), (1336, 16327), (2252, 9686), (4504, 4843)]