21019650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{8243}}^1$

素因数の和:8275

約数の個数: 48

約数和(自身を含む): 55201824

約数和(自身を除く): 34182174

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 425, 510, 850, 1275, 2550, 8243, 16486, 24729, 41215, 49458, 82430, 123645, 140131, 206075, 247290, 280262, 412150, 420393, 618225, 700655, 840786, 1236450, 1401310, 2101965, 3503275, 4203930, 7006550, 10509825, 21019650]

約数ペア:

[(1, 21019650), (2, 10509825), (3, 7006550), (5, 4203930), (6, 3503275), (10, 2101965), (15, 1401310), (17, 1236450), (25, 840786), (30, 700655), (34, 618225), (50, 420393), (51, 412150), (75, 280262), (85, 247290), (102, 206075), (150, 140131), (170, 123645), (255, 82430), (425, 49458), (510, 41215), (850, 24729), (1275, 16486), (2550, 8243)]