21764132

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 42086100

約数和(自身を除く): 20321968

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 149, 212, 298, 596, 689, 1378, 1937, 2756, 2809, 3874, 5618, 7748, 7897, 11236, 15794, 31588, 36517, 73034, 102661, 146068, 205322, 410644, 418541, 837082, 1674164, 5441033, 10882066, 21764132]

約数ペア:

[(1, 21764132), (2, 10882066), (4, 5441033), (13, 1674164), (26, 837082), (52, 418541), (53, 410644), (106, 205322), (149, 146068), (212, 102661), (298, 73034), (596, 36517), (689, 31588), (1378, 15794), (1937, 11236), (2756, 7897), (2809, 7748), (3874, 5618)]