19946030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2161}}^1$

素因数の和:2252

約数の個数: 32

約数和(自身を含む): 39227328

約数和(自身を除く): 19281298

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 2161, 4322, 4615, 9230, 10805, 21610, 28093, 56186, 140465, 153431, 280930, 306862, 767155, 1534310, 1994603, 3989206, 9973015, 19946030]

約数ペア:

[(1, 19946030), (2, 9973015), (5, 3989206), (10, 1994603), (13, 1534310), (26, 767155), (65, 306862), (71, 280930), (130, 153431), (142, 140465), (355, 56186), (710, 28093), (923, 21610), (1846, 10805), (2161, 9230), (4322, 4615)]