18947883

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 28224000

約数和(自身を除く): 9276117

約数列:

[1, 3, 19, 23, 57, 69, 97, 149, 291, 437, 447, 1311, 1843, 2231, 2831, 3427, 5529, 6693, 8493, 10281, 14453, 42389, 43359, 65113, 127167, 195339, 274607, 332419, 823821, 997257, 6315961, 18947883]

約数ペア:

[(1, 18947883), (3, 6315961), (19, 997257), (23, 823821), (57, 332419), (69, 274607), (97, 195339), (149, 127167), (291, 65113), (437, 43359), (447, 42389), (1311, 14453), (1843, 10281), (2231, 8493), (2831, 6693), (3427, 5529)]