21880958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 16003714

約数列:

[1, 2, 11, 22, 23, 46, 83, 166, 253, 506, 521, 913, 1042, 1826, 1909, 3818, 5731, 11462, 11983, 20999, 23966, 41998, 43243, 86486, 131813, 263626, 475673, 951346, 994589, 1989178, 10940479, 21880958]

約数ペア:

[(1, 21880958), (2, 10940479), (11, 1989178), (22, 994589), (23, 951346), (46, 475673), (83, 263626), (166, 131813), (253, 86486), (506, 43243), (521, 41998), (913, 23966), (1042, 20999), (1826, 11983), (1909, 11462), (3818, 5731)]