1864989

素因数分解:

$3^2\times 7^2\times {\mathrm{4229}}^1$

素因数の和:4249

約数の個数: 18

約数和(自身を含む): 3134430

約数和(自身を除く): 1269441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4229, 12687, 29603, 38061, 88809, 207221, 266427, 621663, 1864989]

約数ペア:

[(1, 1864989), (3, 621663), (7, 266427), (9, 207221), (21, 88809), (49, 38061), (63, 29603), (147, 12687), (441, 4229)]