19382716

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 34715520

約数和(自身を除く): 15332804

約数列:

[1, 2, 4, 71, 139, 142, 278, 284, 491, 556, 982, 1964, 9869, 19738, 34861, 39476, 68249, 69722, 136498, 139444, 272996, 4845679, 9691358, 19382716]

約数ペア:

[(1, 19382716), (2, 9691358), (4, 4845679), (71, 272996), (139, 139444), (142, 136498), (278, 69722), (284, 68249), (491, 39476), (556, 34861), (982, 19738), (1964, 9869)]