18904782

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 44089920

約数和(自身を除く): 25185138

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 53, 78, 102, 106, 159, 221, 269, 318, 442, 538, 663, 689, 807, 901, 1326, 1378, 1614, 1802, 2067, 2703, 3497, 4134, 4573, 5406, 6994, 9146, 10491, 11713, 13719, 14257, 20982, 23426, 27438, 28514, 35139, 42771, 59449, 70278, 85542, 118898, 178347, 185341, 242369, 356694, 370682, 484738, 556023, 727107, 1112046, 1454214, 3150797, 6301594, 9452391, 18904782]

約数ペア:

[(1, 18904782), (2, 9452391), (3, 6301594), (6, 3150797), (13, 1454214), (17, 1112046), (26, 727107), (34, 556023), (39, 484738), (51, 370682), (53, 356694), (78, 242369), (102, 185341), (106, 178347), (159, 118898), (221, 85542), (269, 70278), (318, 59449), (442, 42771), (538, 35139), (663, 28514), (689, 27438), (807, 23426), (901, 20982), (1326, 14257), (1378, 13719), (1614, 11713), (1802, 10491), (2067, 9146), (2703, 6994), (3497, 5406), (4134, 4573)]