21478650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{8423}}^1$

素因数の和:8455

約数の個数: 48

約数和(自身を含む): 56407104

約数和(自身を除く): 34928454

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, 8423, 16846, 25269, 42115, 50538, 84230, 126345, 143191, 210575, 252690, 286382, 421150, 429573, 631725, 715955, 859146, 1263450, 1431910, 2147865, 3579775, 4295730, 7159550, 10739325, 21478650]

約数ペア:

[(1, 21478650), (2, 10739325), (3, 7159550), (5, 4295730), (6, 3579775), (10, 2147865), (15, 1431910), (17, 1263450), (25, 859146), (30, 715955), (34, 631725), (50, 429573), (51, 421150), (75, 286382), (85, 252690), (102, 210575), (150, 143191), (170, 126345), (255, 84230), (425, 50538), (510, 42115), (850, 25269), (1275, 16846), (2550, 8423)]