19868238

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 26834418

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 197, 234, 394, 431, 591, 862, 1182, 1293, 1773, 2561, 2586, 3546, 3879, 5122, 5603, 7683, 7758, 11206, 15366, 16809, 23049, 33618, 46098, 50427, 84907, 100854, 169814, 254721, 509442, 764163, 1103791, 1528326, 2207582, 3311373, 6622746, 9934119, 19868238]

約数ペア:

[(1, 19868238), (2, 9934119), (3, 6622746), (6, 3311373), (9, 2207582), (13, 1528326), (18, 1103791), (26, 764163), (39, 509442), (78, 254721), (117, 169814), (197, 100854), (234, 84907), (394, 50427), (431, 46098), (591, 33618), (862, 23049), (1182, 16809), (1293, 15366), (1773, 11206), (2561, 7758), (2586, 7683), (3546, 5603), (3879, 5122)]