21906210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4651}}^1$

素因数の和:4818

約数の個数: 32

約数和(自身を含む): 52921152

約数和(自身を除く): 31014942

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4651, 4710, 9302, 13953, 23255, 27906, 46510, 69765, 139530, 730207, 1460414, 2190621, 3651035, 4381242, 7302070, 10953105, 21906210]

約数ペア:

[(1, 21906210), (2, 10953105), (3, 7302070), (5, 4381242), (6, 3651035), (10, 2190621), (15, 1460414), (30, 730207), (157, 139530), (314, 69765), (471, 46510), (785, 27906), (942, 23255), (1570, 13953), (2355, 9302), (4651, 4710)]