21672540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6337}}^1$

素因数の和:6371

約数の個数: 72

約数和(自身を含む): 69210960

約数和(自身を除く): 47538420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6337, 12674, 19011, 25348, 31685, 38022, 57033, 63370, 76044, 95055, 114066, 120403, 126740, 190110, 228132, 240806, 285165, 361209, 380220, 481612, 570330, 602015, 722418, 1083627, 1140660, 1204030, 1444836, 1806045, 2167254, 2408060, 3612090, 4334508, 5418135, 7224180, 10836270, 21672540]

約数ペア:

[(1, 21672540), (2, 10836270), (3, 7224180), (4, 5418135), (5, 4334508), (6, 3612090), (9, 2408060), (10, 2167254), (12, 1806045), (15, 1444836), (18, 1204030), (19, 1140660), (20, 1083627), (30, 722418), (36, 602015), (38, 570330), (45, 481612), (57, 380220), (60, 361209), (76, 285165), (90, 240806), (95, 228132), (114, 190110), (171, 126740), (180, 120403), (190, 114066), (228, 95055), (285, 76044), (342, 63370), (380, 57033), (570, 38022), (684, 31685), (855, 25348), (1140, 19011), (1710, 12674), (3420, 6337)]