21201660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117787}}^1$

素因数の和:117802

約数の個数: 36

約数和(自身を含む): 64312248

約数和(自身を除く): 43110588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117787, 235574, 353361, 471148, 588935, 706722, 1060083, 1177870, 1413444, 1766805, 2120166, 2355740, 3533610, 4240332, 5300415, 7067220, 10600830, 21201660]

約数ペア:

[(1, 21201660), (2, 10600830), (3, 7067220), (4, 5300415), (5, 4240332), (6, 3533610), (9, 2355740), (10, 2120166), (12, 1766805), (15, 1413444), (18, 1177870), (20, 1060083), (30, 706722), (36, 588935), (45, 471148), (60, 353361), (90, 235574), (180, 117787)]