28415907

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1204

約数の個数: 32

約数和(自身を含む): 45998400

約数和(自身を除く): 17582493

約数列:

[1, 3, 9, 13, 27, 39, 73, 117, 219, 351, 657, 949, 1109, 1971, 2847, 3327, 8541, 9981, 14417, 25623, 29943, 43251, 80957, 129753, 242871, 389259, 728613, 1052441, 2185839, 3157323, 9471969, 28415907]

約数ペア:

[(1, 28415907), (3, 9471969), (9, 3157323), (13, 2185839), (27, 1052441), (39, 728613), (73, 389259), (117, 242871), (219, 129753), (351, 80957), (657, 43251), (949, 29943), (1109, 25623), (1971, 14417), (2847, 9981), (3327, 8541)]