21901818

素因数分解:

$2^1\times 3^1\times {\mathrm{401}}^1\times {\mathrm{9103}}^1$

素因数の和:9509

約数の個数: 16

約数和(自身を含む): 43917696

約数和(自身を除く): 22015878

約数列:

[1, 2, 3, 6, 401, 802, 1203, 2406, 9103, 18206, 27309, 54618, 3650303, 7300606, 10950909, 21901818]

約数ペア:

[(1, 21901818), (2, 10950909), (3, 7300606), (6, 3650303), (401, 54618), (802, 27309), (1203, 18206), (2406, 9103)]