21124150

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 40979520

約数和(自身を除く): 19855370

約数列:

[1, 2, 5, 10, 25, 47, 50, 89, 94, 101, 178, 202, 235, 445, 470, 505, 890, 1010, 1175, 2225, 2350, 2525, 4183, 4450, 4747, 5050, 8366, 8989, 9494, 17978, 20915, 23735, 41830, 44945, 47470, 89890, 104575, 118675, 209150, 224725, 237350, 422483, 449450, 844966, 2112415, 4224830, 10562075, 21124150]

約数ペア:

[(1, 21124150), (2, 10562075), (5, 4224830), (10, 2112415), (25, 844966), (47, 449450), (50, 422483), (89, 237350), (94, 224725), (101, 209150), (178, 118675), (202, 104575), (235, 89890), (445, 47470), (470, 44945), (505, 41830), (890, 23735), (1010, 20915), (1175, 17978), (2225, 9494), (2350, 8989), (2525, 8366), (4183, 5050), (4450, 4747)]