21387840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{22279}}^1$

素因数の和:22299

約数の個数: 56

約数和(自身を含む): 67909440

約数和(自身を除く): 46521600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 22279, 44558, 66837, 89116, 111395, 133674, 178232, 222790, 267348, 334185, 356464, 445580, 534696, 668370, 712928, 891160, 1069392, 1336740, 1425856, 1782320, 2138784, 2673480, 3564640, 4277568, 5346960, 7129280, 10693920, 21387840]

約数ペア:

[(1, 21387840), (2, 10693920), (3, 7129280), (4, 5346960), (5, 4277568), (6, 3564640), (8, 2673480), (10, 2138784), (12, 1782320), (15, 1425856), (16, 1336740), (20, 1069392), (24, 891160), (30, 712928), (32, 668370), (40, 534696), (48, 445580), (60, 356464), (64, 334185), (80, 267348), (96, 222790), (120, 178232), (160, 133674), (192, 111395), (240, 89116), (320, 66837), (480, 44558), (960, 22279)]