21643090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16273}}^1$

素因数の和:16306

約数の個数: 32

約数和(自身を含む): 46869120

約数和(自身を除く): 25226030

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16273, 32546, 81365, 113911, 162730, 227822, 309187, 569555, 618374, 1139110, 1545935, 2164309, 3091870, 4328618, 10821545, 21643090]

約数ペア:

[(1, 21643090), (2, 10821545), (5, 4328618), (7, 3091870), (10, 2164309), (14, 1545935), (19, 1139110), (35, 618374), (38, 569555), (70, 309187), (95, 227822), (133, 162730), (190, 113911), (266, 81365), (665, 32546), (1330, 16273)]