21615220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98251}}^1$

素因数の和:98271

約数の個数: 24

約数和(自身を含む): 49519008

約数和(自身を除く): 27903788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98251, 196502, 393004, 491255, 982510, 1080761, 1965020, 2161522, 4323044, 5403805, 10807610, 21615220]

約数ペア:

[(1, 21615220), (2, 10807610), (4, 5403805), (5, 4323044), (10, 2161522), (11, 1965020), (20, 1080761), (22, 982510), (44, 491255), (55, 393004), (110, 196502), (220, 98251)]