21893320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28807}}^1$

素因数の和:28837

約数の個数: 32

約数和(自身を含む): 51854400

約数和(自身を除く): 29961080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28807, 57614, 115228, 144035, 230456, 288070, 547333, 576140, 1094666, 1152280, 2189332, 2736665, 4378664, 5473330, 10946660, 21893320]

約数ペア:

[(1, 21893320), (2, 10946660), (4, 5473330), (5, 4378664), (8, 2736665), (10, 2189332), (19, 1152280), (20, 1094666), (38, 576140), (40, 547333), (76, 288070), (95, 230456), (152, 144035), (190, 115228), (380, 57614), (760, 28807)]