20872184

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{389}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 41418000

約数和(自身を除く): 20545816

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 353, 389, 706, 778, 1412, 1556, 2824, 3112, 6707, 7391, 13414, 14782, 26828, 29564, 53656, 59128, 137317, 274634, 549268, 1098536, 2609023, 5218046, 10436092, 20872184]

約数ペア:

[(1, 20872184), (2, 10436092), (4, 5218046), (8, 2609023), (19, 1098536), (38, 549268), (76, 274634), (152, 137317), (353, 59128), (389, 53656), (706, 29564), (778, 26828), (1412, 14782), (1556, 13414), (2824, 7391), (3112, 6707)]