19131876

素因数分解:

$2^2\times 3^{14}$

素因数の和:46

約数の個数: 45

約数和(自身を含む): 50221171

約数和(自身を除く): 31089295

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2187, 2916, 4374, 6561, 8748, 13122, 19683, 26244, 39366, 59049, 78732, 118098, 177147, 236196, 354294, 531441, 708588, 1062882, 1594323, 2125764, 3188646, 4782969, 6377292, 9565938, 19131876]

約数ペア:

[(1, 19131876), (2, 9565938), (3, 6377292), (4, 4782969), (6, 3188646), (9, 2125764), (12, 1594323), (18, 1062882), (27, 708588), (36, 531441), (54, 354294), (81, 236196), (108, 177147), (162, 118098), (243, 78732), (324, 59049), (486, 39366), (729, 26244), (972, 19683), (1458, 13122), (2187, 8748), (2916, 6561)]