18720026

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1033}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 32831568

約数和(自身を除く): 14111542

約数列:

[1, 2, 13, 17, 26, 34, 41, 82, 221, 442, 533, 697, 1033, 1066, 1394, 2066, 9061, 13429, 17561, 18122, 26858, 35122, 42353, 84706, 228293, 456586, 550589, 720001, 1101178, 1440002, 9360013, 18720026]

約数ペア:

[(1, 18720026), (2, 9360013), (13, 1440002), (17, 1101178), (26, 720001), (34, 550589), (41, 456586), (82, 228293), (221, 84706), (442, 42353), (533, 35122), (697, 26858), (1033, 18122), (1066, 17561), (1394, 13429), (2066, 9061)]