81618273

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1949}}^1$

素因数の和:2019

約数の個数: 40

約数和(自身を含む): 135907200

約数和(自身を除く): 54288927

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 141, 297, 423, 517, 891, 1269, 1551, 1949, 3807, 4653, 5847, 13959, 17541, 21439, 41877, 52623, 64317, 91603, 157869, 192951, 274809, 578853, 824427, 1007633, 1736559, 2473281, 3022899, 7419843, 9068697, 27206091, 81618273]

約数ペア:

[(1, 81618273), (3, 27206091), (9, 9068697), (11, 7419843), (27, 3022899), (33, 2473281), (47, 1736559), (81, 1007633), (99, 824427), (141, 578853), (297, 274809), (423, 192951), (517, 157869), (891, 91603), (1269, 64317), (1551, 52623), (1949, 41877), (3807, 21439), (4653, 17541), (5847, 13959)]