20931845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 29569536

約数和(自身を除く): 8637691

約数列:

[1, 5, 11, 17, 55, 61, 85, 187, 305, 367, 671, 935, 1037, 1835, 3355, 4037, 5185, 6239, 11407, 20185, 22387, 31195, 57035, 68629, 111935, 246257, 343145, 380579, 1231285, 1902895, 4186369, 20931845]

約数ペア:

[(1, 20931845), (5, 4186369), (11, 1902895), (17, 1231285), (55, 380579), (61, 343145), (85, 246257), (187, 111935), (305, 68629), (367, 57035), (671, 31195), (935, 22387), (1037, 20185), (1835, 11407), (3355, 6239), (4037, 5185)]