21273910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3847}}^1$

素因数の和:3940

約数の個数: 32

約数和(自身を含む): 44328960

約数和(自身を除く): 23055050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 3847, 5530, 7694, 19235, 26929, 38470, 53858, 134645, 269290, 303913, 607826, 1519565, 2127391, 3039130, 4254782, 10636955, 21273910]

約数ペア:

[(1, 21273910), (2, 10636955), (5, 4254782), (7, 3039130), (10, 2127391), (14, 1519565), (35, 607826), (70, 303913), (79, 269290), (158, 134645), (395, 53858), (553, 38470), (790, 26929), (1106, 19235), (2765, 7694), (3847, 5530)]