21561736

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9391}}^1$

素因数の和:9445

約数の個数: 32

約数和(自身を含む): 47335680

約数和(自身を除く): 25773944

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9391, 18782, 37564, 65737, 75128, 131474, 262948, 385031, 525896, 770062, 1540124, 2695217, 3080248, 5390434, 10780868, 21561736]

約数ペア:

[(1, 21561736), (2, 10780868), (4, 5390434), (7, 3080248), (8, 2695217), (14, 1540124), (28, 770062), (41, 525896), (56, 385031), (82, 262948), (164, 131474), (287, 75128), (328, 65737), (574, 37564), (1148, 18782), (2296, 9391)]