21128190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 54051840

約数和(自身を除く): 32923650

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 101, 114, 190, 202, 285, 303, 367, 505, 570, 606, 734, 1010, 1101, 1515, 1835, 1919, 2202, 3030, 3670, 3838, 5505, 5757, 6973, 9595, 11010, 11514, 13946, 19190, 20919, 28785, 34865, 37067, 41838, 57570, 69730, 74134, 104595, 111201, 185335, 209190, 222402, 370670, 556005, 704273, 1112010, 1408546, 2112819, 3521365, 4225638, 7042730, 10564095, 21128190]

約数ペア:

[(1, 21128190), (2, 10564095), (3, 7042730), (5, 4225638), (6, 3521365), (10, 2112819), (15, 1408546), (19, 1112010), (30, 704273), (38, 556005), (57, 370670), (95, 222402), (101, 209190), (114, 185335), (190, 111201), (202, 104595), (285, 74134), (303, 69730), (367, 57570), (505, 41838), (570, 37067), (606, 34865), (734, 28785), (1010, 20919), (1101, 19190), (1515, 13946), (1835, 11514), (1919, 11010), (2202, 9595), (3030, 6973), (3670, 5757), (3838, 5505)]