19931905

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 29272320

約数和(自身を除く): 9340415

約数列:

[1, 5, 7, 17, 35, 85, 119, 139, 241, 595, 695, 973, 1205, 1687, 2363, 4097, 4865, 8435, 11815, 16541, 20485, 28679, 33499, 82705, 143395, 167495, 234493, 569483, 1172465, 2847415, 3986381, 19931905]

約数ペア:

[(1, 19931905), (5, 3986381), (7, 2847415), (17, 1172465), (35, 569483), (85, 234493), (119, 167495), (139, 143395), (241, 82705), (595, 33499), (695, 28679), (973, 20485), (1205, 16541), (1687, 11815), (2363, 8435), (4097, 4865)]