21004080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87517}}^1$

素因数の和:87533

約数の個数: 40

約数和(自身を含む): 65113392

約数和(自身を除く): 44109312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87517, 175034, 262551, 350068, 437585, 525102, 700136, 875170, 1050204, 1312755, 1400272, 1750340, 2100408, 2625510, 3500680, 4200816, 5251020, 7001360, 10502040, 21004080]

約数ペア:

[(1, 21004080), (2, 10502040), (3, 7001360), (4, 5251020), (5, 4200816), (6, 3500680), (8, 2625510), (10, 2100408), (12, 1750340), (15, 1400272), (16, 1312755), (20, 1050204), (24, 875170), (30, 700136), (40, 525102), (48, 437585), (60, 350068), (80, 262551), (120, 175034), (240, 87517)]