21570730

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 18864470

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 467, 745, 934, 1490, 2335, 4619, 4670, 9238, 14477, 23095, 28954, 46190, 69583, 72385, 139166, 144770, 347915, 695830, 2157073, 4314146, 10785365, 21570730]

約数ペア:

[(1, 21570730), (2, 10785365), (5, 4314146), (10, 2157073), (31, 695830), (62, 347915), (149, 144770), (155, 139166), (298, 72385), (310, 69583), (467, 46190), (745, 28954), (934, 23095), (1490, 14477), (2335, 9238), (4619, 4670)]