20790786

素因数分解:

$2^1\times 3^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 42477120

約数和(自身を除く): 21686334

約数列:

[1, 2, 3, 6, 97, 139, 194, 257, 278, 291, 417, 514, 582, 771, 834, 1542, 13483, 24929, 26966, 35723, 40449, 49858, 71446, 74787, 80898, 107169, 149574, 214338, 3465131, 6930262, 10395393, 20790786]

約数ペア:

[(1, 20790786), (2, 10395393), (3, 6930262), (6, 3465131), (97, 214338), (139, 149574), (194, 107169), (257, 80898), (278, 74787), (291, 71446), (417, 49858), (514, 40449), (582, 35723), (771, 26966), (834, 24929), (1542, 13483)]