21000547740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{673}}^1\times {\mathrm{520073}}^1$

素因数の和:520758

約数の個数: 48

約数和(自身を含む): 58889019168

約数和(自身を除く): 37888471428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 673, 1346, 2019, 2692, 3365, 4038, 6730, 8076, 10095, 13460, 20190, 40380, 520073, 1040146, 1560219, 2080292, 2600365, 3120438, 5200730, 6240876, 7801095, 10401460, 15602190, 31204380, 350009129, 700018258, 1050027387, 1400036516, 1750045645, 2100054774, 3500091290, 4200109548, 5250136935, 7000182580, 10500273870, 21000547740]

約数ペア:

[(1, 21000547740), (2, 10500273870), (3, 7000182580), (4, 5250136935), (5, 4200109548), (6, 3500091290), (10, 2100054774), (12, 1750045645), (15, 1400036516), (20, 1050027387), (30, 700018258), (60, 350009129), (673, 31204380), (1346, 15602190), (2019, 10401460), (2692, 7801095), (3365, 6240876), (4038, 5200730), (6730, 3120438), (8076, 2600365), (10095, 2080292), (13460, 1560219), (20190, 1040146), (40380, 520073)]