21597009406

素因数分解:

$2^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{264559}}^1$

素因数の和:264606

約数の個数: 40

約数和(自身を含む): 40015758240

約数和(自身を除く): 18418748834

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 343, 686, 833, 1666, 2401, 4802, 5831, 11662, 40817, 81634, 264559, 529118, 1851913, 3703826, 4497503, 8995006, 12963391, 25926782, 31482521, 62965042, 90743737, 181487474, 220377647, 440755294, 635206159, 1270412318, 1542643529, 3085287058, 10798504703, 21597009406]

約数ペア:

[(1, 21597009406), (2, 10798504703), (7, 3085287058), (14, 1542643529), (17, 1270412318), (34, 635206159), (49, 440755294), (98, 220377647), (119, 181487474), (238, 90743737), (343, 62965042), (686, 31482521), (833, 25926782), (1666, 12963391), (2401, 8995006), (4802, 4497503), (5831, 3703826), (11662, 1851913), (40817, 529118), (81634, 264559)]