21657420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120319}}^1$

素因数の和:120334

約数の個数: 36

約数和(自身を含む): 65694720

約数和(自身を除く): 44037300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120319, 240638, 360957, 481276, 601595, 721914, 1082871, 1203190, 1443828, 1804785, 2165742, 2406380, 3609570, 4331484, 5414355, 7219140, 10828710, 21657420]

約数ペア:

[(1, 21657420), (2, 10828710), (3, 7219140), (4, 5414355), (5, 4331484), (6, 3609570), (9, 2406380), (10, 2165742), (12, 1804785), (15, 1443828), (18, 1203190), (20, 1082871), (30, 721914), (36, 601595), (45, 481276), (60, 360957), (90, 240638), (180, 120319)]