21000929495

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{35153}}^1$

素因数の和:35292

約数の個数: 48

約数和(自身を含む): 31496859072

約数和(自身を除く): 10495929577

約数列:

[1, 5, 7, 13, 35, 65, 91, 101, 169, 455, 505, 707, 845, 1183, 1313, 3535, 5915, 6565, 9191, 17069, 35153, 45955, 85345, 119483, 175765, 246071, 456989, 597415, 1230355, 2284945, 3198923, 3550453, 5940857, 15994615, 17752265, 24853171, 29704285, 41585999, 46155889, 124265855, 207929995, 230779445, 323091223, 600026557, 1615456115, 3000132785, 4200185899, 21000929495]

約数ペア:

[(1, 21000929495), (5, 4200185899), (7, 3000132785), (13, 1615456115), (35, 600026557), (65, 323091223), (91, 230779445), (101, 207929995), (169, 124265855), (455, 46155889), (505, 41585999), (707, 29704285), (845, 24853171), (1183, 17752265), (1313, 15994615), (3535, 5940857), (5915, 3550453), (6565, 3198923), (9191, 2284945), (17069, 1230355), (35153, 597415), (45955, 456989), (85345, 246071), (119483, 175765)]