21904110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{947}}^1$

素因数の和:1217

約数の個数: 48

約数和(自身を含む): 57232656

約数和(自身を除く): 35328546

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 257, 514, 771, 947, 1285, 1542, 1894, 2313, 2570, 2841, 3855, 4626, 4735, 5682, 7710, 8523, 9470, 11565, 14205, 17046, 23130, 28410, 42615, 85230, 243379, 486758, 730137, 1216895, 1460274, 2190411, 2433790, 3650685, 4380822, 7301370, 10952055, 21904110]

約数ペア:

[(1, 21904110), (2, 10952055), (3, 7301370), (5, 4380822), (6, 3650685), (9, 2433790), (10, 2190411), (15, 1460274), (18, 1216895), (30, 730137), (45, 486758), (90, 243379), (257, 85230), (514, 42615), (771, 28410), (947, 23130), (1285, 17046), (1542, 14205), (1894, 11565), (2313, 9470), (2570, 8523), (2841, 7710), (3855, 5682), (4626, 4735)]