21074615

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:730

約数の個数: 16

約数和(自身を含む): 26078976

約数和(自身を除く): 5004361

約数列:

[1, 5, 41, 205, 223, 461, 1115, 2305, 9143, 18901, 45715, 94505, 102803, 514015, 4214923, 21074615]

約数ペア:

[(1, 21074615), (5, 4214923), (41, 514015), (205, 102803), (223, 94505), (461, 45715), (1115, 18901), (2305, 9143)]