21885838

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:988

約数の個数: 24

約数和(自身を含む): 36075888

約数和(自身を除く): 14190050

約数列:

[1, 2, 13, 26, 73, 146, 169, 338, 887, 949, 1774, 1898, 11531, 12337, 23062, 24674, 64751, 129502, 149903, 299806, 841763, 1683526, 10942919, 21885838]

約数ペア:

[(1, 21885838), (2, 10942919), (13, 1683526), (26, 841763), (73, 299806), (146, 149903), (169, 129502), (338, 64751), (887, 24674), (949, 23062), (1774, 12337), (1898, 11531)]