21523305125

素因数分解:

$5^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{152783}}^1$

素因数の和:152835

約数の個数: 48

約数和(自身を含む): 32605327872

約数和(自身を除く): 11082022747

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 125, 161, 175, 245, 575, 805, 875, 1127, 1225, 2875, 4025, 5635, 6125, 20125, 28175, 140875, 152783, 763915, 1069481, 3514009, 3819575, 5347405, 7486367, 17570045, 19097875, 24598063, 26737025, 37431835, 87850225, 122990315, 133685125, 172186441, 187159175, 439251125, 614951575, 860932205, 935795875, 3074757875, 4304661025, 21523305125]

約数ペア:

[(1, 21523305125), (5, 4304661025), (7, 3074757875), (23, 935795875), (25, 860932205), (35, 614951575), (49, 439251125), (115, 187159175), (125, 172186441), (161, 133685125), (175, 122990315), (245, 87850225), (575, 37431835), (805, 26737025), (875, 24598063), (1127, 19097875), (1225, 17570045), (2875, 7486367), (4025, 5347405), (5635, 3819575), (6125, 3514009), (20125, 1069481), (28175, 763915), (140875, 152783)]