21254256

素因数分解:

$2^4\times 3^2\times {\mathrm{103}}^1\times {\mathrm{1433}}^1$

素因数の和:1550

約数の個数: 60

約数和(自身を含む): 60101808

約数和(自身を除く): 38847552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 103, 144, 206, 309, 412, 618, 824, 927, 1236, 1433, 1648, 1854, 2472, 2866, 3708, 4299, 4944, 5732, 7416, 8598, 11464, 12897, 14832, 17196, 22928, 25794, 34392, 51588, 68784, 103176, 147599, 206352, 295198, 442797, 590396, 885594, 1180792, 1328391, 1771188, 2361584, 2656782, 3542376, 5313564, 7084752, 10627128, 21254256]

約数ペア:

[(1, 21254256), (2, 10627128), (3, 7084752), (4, 5313564), (6, 3542376), (8, 2656782), (9, 2361584), (12, 1771188), (16, 1328391), (18, 1180792), (24, 885594), (36, 590396), (48, 442797), (72, 295198), (103, 206352), (144, 147599), (206, 103176), (309, 68784), (412, 51588), (618, 34392), (824, 25794), (927, 22928), (1236, 17196), (1433, 14832), (1648, 12897), (1854, 11464), (2472, 8598), (2866, 7416), (3708, 5732), (4299, 4944)]