18904941

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1201}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 31155840

約数和(自身を除く): 12250899

約数列:

[1, 3, 9, 11, 27, 33, 53, 99, 159, 297, 477, 583, 1201, 1431, 1749, 3603, 5247, 10809, 13211, 15741, 32427, 39633, 63653, 118899, 190959, 356697, 572877, 700183, 1718631, 2100549, 6301647, 18904941]

約数ペア:

[(1, 18904941), (3, 6301647), (9, 2100549), (11, 1718631), (27, 700183), (33, 572877), (53, 356697), (99, 190959), (159, 118899), (297, 63653), (477, 39633), (583, 32427), (1201, 15741), (1431, 13211), (1749, 10809), (3603, 5247)]