20199842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2042

約数の個数: 32

約数和(自身を含む): 36070272

約数和(自身を除く): 15870430

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 1987, 3974, 5083, 10166, 25831, 33779, 45701, 51662, 67558, 91402, 439127, 594113, 776917, 878254, 1188226, 1553834, 10099921, 20199842]

約数ペア:

[(1, 20199842), (2, 10099921), (13, 1553834), (17, 1188226), (23, 878254), (26, 776917), (34, 594113), (46, 439127), (221, 91402), (299, 67558), (391, 51662), (442, 45701), (598, 33779), (782, 25831), (1987, 10166), (3974, 5083)]