21041445840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87672691}}^1$

素因数の和:87672707

約数の個数: 40

約数和(自身を含む): 65228482848

約数和(自身を除く): 44187037008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87672691, 175345382, 263018073, 350690764, 438363455, 526036146, 701381528, 876726910, 1052072292, 1315090365, 1402763056, 1753453820, 2104144584, 2630180730, 3506907640, 4208289168, 5260361460, 7013815280, 10520722920, 21041445840]

約数ペア:

[(1, 21041445840), (2, 10520722920), (3, 7013815280), (4, 5260361460), (5, 4208289168), (6, 3506907640), (8, 2630180730), (10, 2104144584), (12, 1753453820), (15, 1402763056), (16, 1315090365), (20, 1052072292), (24, 876726910), (30, 701381528), (40, 526036146), (48, 438363455), (60, 350690764), (80, 263018073), (120, 175345382), (240, 87672691)]