21579782

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2617}}^1$

素因数の和:2676

約数の個数: 32

約数和(自身を含む): 40212480

約数和(自身を除く): 18632698

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 2617, 4123, 5234, 8246, 18319, 36638, 49723, 81127, 99446, 162254, 348061, 567889, 696122, 1135778, 1541413, 3082826, 10789891, 21579782]

約数ペア:

[(1, 21579782), (2, 10789891), (7, 3082826), (14, 1541413), (19, 1135778), (31, 696122), (38, 567889), (62, 348061), (133, 162254), (217, 99446), (266, 81127), (434, 49723), (589, 36638), (1178, 18319), (2617, 8246), (4123, 5234)]