21659580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120331}}^1$

素因数の和:120346

約数の個数: 36

約数和(自身を含む): 65701272

約数和(自身を除く): 44041692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120331, 240662, 360993, 481324, 601655, 721986, 1082979, 1203310, 1443972, 1804965, 2165958, 2406620, 3609930, 4331916, 5414895, 7219860, 10829790, 21659580]

約数ペア:

[(1, 21659580), (2, 10829790), (3, 7219860), (4, 5414895), (5, 4331916), (6, 3609930), (9, 2406620), (10, 2165958), (12, 1804965), (15, 1443972), (18, 1203310), (20, 1082979), (30, 721986), (36, 601655), (45, 481324), (60, 360993), (90, 240662), (180, 120331)]