18744507

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 29760000

約数和(自身を除く): 11015493

約数列:

[1, 3, 9, 19, 27, 57, 61, 171, 183, 513, 549, 599, 1159, 1647, 1797, 3477, 5391, 10431, 11381, 16173, 31293, 34143, 36539, 102429, 109617, 307287, 328851, 694241, 986553, 2082723, 6248169, 18744507]

約数ペア:

[(1, 18744507), (3, 6248169), (9, 2082723), (19, 986553), (27, 694241), (57, 328851), (61, 307287), (171, 109617), (183, 102429), (513, 36539), (549, 34143), (599, 31293), (1159, 16173), (1647, 11381), (1797, 10431), (3477, 5391)]