15399215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 21577920

約数和(自身を除く): 6178705

約数列:

[1, 5, 13, 19, 37, 65, 95, 185, 247, 337, 481, 703, 1235, 1685, 2405, 3515, 4381, 6403, 9139, 12469, 21905, 32015, 45695, 62345, 83239, 162097, 236911, 416195, 810485, 1184555, 3079843, 15399215]

約数ペア:

[(1, 15399215), (5, 3079843), (13, 1184555), (19, 810485), (37, 416195), (65, 236911), (95, 162097), (185, 83239), (247, 62345), (337, 45695), (481, 32015), (703, 21905), (1235, 12469), (1685, 9139), (2405, 6403), (3515, 4381)]