15391257

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 24576000

約数和(自身を除く): 9184743

約数列:

[1, 3, 7, 21, 29, 87, 127, 199, 203, 381, 597, 609, 889, 1393, 2667, 3683, 4179, 5771, 11049, 17313, 25273, 25781, 40397, 75819, 77343, 121191, 176911, 530733, 732917, 2198751, 5130419, 15391257]

約数ペア:

[(1, 15391257), (3, 5130419), (7, 2198751), (21, 732917), (29, 530733), (87, 176911), (127, 121191), (199, 77343), (203, 75819), (381, 40397), (597, 25781), (609, 25273), (889, 17313), (1393, 11049), (2667, 5771), (3683, 4179)]