21301610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{983}}^1$

素因数の和:1198

約数の個数: 32

約数和(自身を含む): 42083712

約数和(自身を除く): 20782102

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 983, 985, 1966, 1970, 2167, 4334, 4915, 9830, 10813, 10835, 21626, 21670, 54065, 108130, 193651, 387302, 968255, 1936510, 2130161, 4260322, 10650805, 21301610]

約数ペア:

[(1, 21301610), (2, 10650805), (5, 4260322), (10, 2130161), (11, 1936510), (22, 968255), (55, 387302), (110, 193651), (197, 108130), (394, 54065), (983, 21670), (985, 21626), (1966, 10835), (1970, 10813), (2167, 9830), (4334, 4915)]