15219561

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^2$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 23790144

約数和(自身を除く): 8570583

約数列:

[1, 3, 7, 21, 61, 109, 183, 327, 427, 763, 1281, 2289, 6649, 11881, 19947, 35643, 46543, 83167, 139629, 249501, 724741, 2174223, 5073187, 15219561]

約数ペア:

[(1, 15219561), (3, 5073187), (7, 2174223), (21, 724741), (61, 249501), (109, 139629), (183, 83167), (327, 46543), (427, 35643), (763, 19947), (1281, 11881), (2289, 6649)]