21148950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{277}}^1\times {\mathrm{509}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 52742160

約数和(自身を除く): 31593210

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 277, 509, 554, 831, 1018, 1385, 1527, 1662, 2545, 2770, 3054, 4155, 5090, 6925, 7635, 8310, 12725, 13850, 15270, 20775, 25450, 38175, 41550, 76350, 140993, 281986, 422979, 704965, 845958, 1409930, 2114895, 3524825, 4229790, 7049650, 10574475, 21148950]

約数ペア:

[(1, 21148950), (2, 10574475), (3, 7049650), (5, 4229790), (6, 3524825), (10, 2114895), (15, 1409930), (25, 845958), (30, 704965), (50, 422979), (75, 281986), (150, 140993), (277, 76350), (509, 41550), (554, 38175), (831, 25450), (1018, 20775), (1385, 15270), (1527, 13850), (1662, 12725), (2545, 8310), (2770, 7635), (3054, 6925), (4155, 5090)]