19887678

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1297

約数の個数: 48

約数和(自身を含む): 46051200

約数和(自身を除く): 26163522

約数列:

[1, 2, 3, 6, 9, 18, 29, 31, 58, 62, 87, 93, 174, 186, 261, 279, 522, 558, 899, 1229, 1798, 2458, 2697, 3687, 5394, 7374, 8091, 11061, 16182, 22122, 35641, 38099, 71282, 76198, 106923, 114297, 213846, 228594, 320769, 342891, 641538, 685782, 1104871, 2209742, 3314613, 6629226, 9943839, 19887678]

約数ペア:

[(1, 19887678), (2, 9943839), (3, 6629226), (6, 3314613), (9, 2209742), (18, 1104871), (29, 685782), (31, 641538), (58, 342891), (62, 320769), (87, 228594), (93, 213846), (174, 114297), (186, 106923), (261, 76198), (279, 71282), (522, 38099), (558, 35641), (899, 22122), (1229, 16182), (1798, 11061), (2458, 8091), (2697, 7374), (3687, 5394)]