21522830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{881}}^1$

素因数の和:1244

約数の個数: 32

約数和(自身を含む): 44452800

約数和(自身を除く): 22929970

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 349, 698, 881, 1745, 1762, 2443, 3490, 4405, 4886, 6167, 8810, 12215, 12334, 24430, 30835, 61670, 307469, 614938, 1537345, 2152283, 3074690, 4304566, 10761415, 21522830]

約数ペア:

[(1, 21522830), (2, 10761415), (5, 4304566), (7, 3074690), (10, 2152283), (14, 1537345), (35, 614938), (70, 307469), (349, 61670), (698, 30835), (881, 24430), (1745, 12334), (1762, 12215), (2443, 8810), (3490, 6167), (4405, 4886)]