15972789

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 25482496

約数和(自身を除く): 9509707

約数列:

[1, 3, 7, 21, 37, 61, 111, 183, 259, 337, 427, 777, 1011, 1281, 2257, 2359, 6771, 7077, 12469, 15799, 20557, 37407, 47397, 61671, 87283, 143899, 261849, 431697, 760609, 2281827, 5324263, 15972789]

約数ペア:

[(1, 15972789), (3, 5324263), (7, 2281827), (21, 760609), (37, 431697), (61, 261849), (111, 143899), (183, 87283), (259, 61671), (337, 47397), (427, 37407), (777, 20557), (1011, 15799), (1281, 12469), (2257, 7077), (2359, 6771)]