21517002

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1$

素因数の和:645

約数の個数: 80

約数和(自身を含む): 55068552

約数和(自身を除く): 33551550

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 81, 102, 117, 153, 162, 221, 234, 306, 351, 442, 459, 601, 663, 702, 918, 1053, 1202, 1326, 1377, 1803, 1989, 2106, 2754, 3606, 3978, 5409, 5967, 7813, 10217, 10818, 11934, 15626, 16227, 17901, 20434, 23439, 30651, 32454, 35802, 46878, 48681, 61302, 70317, 91953, 97362, 132821, 140634, 183906, 210951, 265642, 275859, 398463, 421902, 551718, 632853, 796926, 827577, 1195389, 1265706, 1655154, 2390778, 3586167, 7172334, 10758501, 21517002]

約数ペア:

[(1, 21517002), (2, 10758501), (3, 7172334), (6, 3586167), (9, 2390778), (13, 1655154), (17, 1265706), (18, 1195389), (26, 827577), (27, 796926), (34, 632853), (39, 551718), (51, 421902), (54, 398463), (78, 275859), (81, 265642), (102, 210951), (117, 183906), (153, 140634), (162, 132821), (221, 97362), (234, 91953), (306, 70317), (351, 61302), (442, 48681), (459, 46878), (601, 35802), (663, 32454), (702, 30651), (918, 23439), (1053, 20434), (1202, 17901), (1326, 16227), (1377, 15626), (1803, 11934), (1989, 10818), (2106, 10217), (2754, 7813), (3606, 5967), (3978, 5409)]