17978085

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 34636800

約数和(自身を除く): 16658715

約数列:

[1, 3, 5, 9, 15, 19, 27, 43, 45, 57, 95, 129, 135, 163, 171, 215, 285, 387, 489, 513, 645, 815, 817, 855, 1161, 1467, 1935, 2445, 2451, 2565, 3097, 4085, 4401, 5805, 7009, 7335, 7353, 9291, 12255, 15485, 21027, 22005, 22059, 27873, 35045, 36765, 46455, 63081, 83619, 105135, 110295, 133171, 139365, 189243, 315405, 399513, 418095, 665855, 946215, 1198539, 1997565, 3595617, 5992695, 17978085]

約数ペア:

[(1, 17978085), (3, 5992695), (5, 3595617), (9, 1997565), (15, 1198539), (19, 946215), (27, 665855), (43, 418095), (45, 399513), (57, 315405), (95, 189243), (129, 139365), (135, 133171), (163, 110295), (171, 105135), (215, 83619), (285, 63081), (387, 46455), (489, 36765), (513, 35045), (645, 27873), (815, 22059), (817, 22005), (855, 21027), (1161, 15485), (1467, 12255), (1935, 9291), (2445, 7353), (2451, 7335), (2565, 7009), (3097, 5805), (4085, 4401)]