21587220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119929}}^1$

素因数の和:119944

約数の個数: 36

約数和(自身を含む): 65481780

約数和(自身を除く): 43894560

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119929, 239858, 359787, 479716, 599645, 719574, 1079361, 1199290, 1439148, 1798935, 2158722, 2398580, 3597870, 4317444, 5396805, 7195740, 10793610, 21587220]

約数ペア:

[(1, 21587220), (2, 10793610), (3, 7195740), (4, 5396805), (5, 4317444), (6, 3597870), (9, 2398580), (10, 2158722), (12, 1798935), (15, 1439148), (18, 1199290), (20, 1079361), (30, 719574), (36, 599645), (45, 479716), (60, 359787), (90, 239858), (180, 119929)]