18720233433

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{40639}}^1$

素因数の和:40720

約数の個数: 60

約数和(自身を含む): 31392936960

約数和(自身を除く): 12672703527

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 121, 141, 297, 363, 423, 517, 891, 1089, 1269, 1551, 3267, 3807, 4653, 5687, 9801, 13959, 17061, 40639, 41877, 51183, 121917, 153549, 365751, 447029, 460647, 1097253, 1341087, 1910033, 3291759, 4023261, 4917319, 5730099, 12069783, 14751957, 17190297, 21010363, 36209349, 44255871, 51570891, 63031089, 132767613, 154712673, 189093267, 231113993, 398302839, 567279801, 693341979, 1701839403, 2080025937, 6240077811, 18720233433]

約数ペア:

[(1, 18720233433), (3, 6240077811), (9, 2080025937), (11, 1701839403), (27, 693341979), (33, 567279801), (47, 398302839), (81, 231113993), (99, 189093267), (121, 154712673), (141, 132767613), (297, 63031089), (363, 51570891), (423, 44255871), (517, 36209349), (891, 21010363), (1089, 17190297), (1269, 14751957), (1551, 12069783), (3267, 5730099), (3807, 4917319), (4653, 4023261), (5687, 3291759), (9801, 1910033), (13959, 1341087), (17061, 1097253), (40639, 460647), (41877, 447029), (51183, 365751), (121917, 153549)]