28318221

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1534

約数の個数: 32

約数和(自身を含む): 45219840

約数和(自身を除く): 16901619

約数列:

[1, 3, 9, 23, 27, 31, 69, 93, 207, 279, 621, 713, 837, 1471, 2139, 4413, 6417, 13239, 19251, 33833, 39717, 45601, 101499, 136803, 304497, 410409, 913491, 1048823, 1231227, 3146469, 9439407, 28318221]

約数ペア:

[(1, 28318221), (3, 9439407), (9, 3146469), (23, 1231227), (27, 1048823), (31, 913491), (69, 410409), (93, 304497), (207, 136803), (279, 101499), (621, 45601), (713, 39717), (837, 33833), (1471, 19251), (2139, 13239), (4413, 6417)]