21902375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{937}}^1$

素因数の和:980

約数の個数: 32

約数和(自身を含む): 31606848

約数和(自身を除く): 9704473

約数列:

[1, 5, 11, 17, 25, 55, 85, 125, 187, 275, 425, 935, 937, 1375, 2125, 4675, 4685, 10307, 15929, 23375, 23425, 51535, 79645, 117125, 175219, 257675, 398225, 876095, 1288375, 1991125, 4380475, 21902375]

約数ペア:

[(1, 21902375), (5, 4380475), (11, 1991125), (17, 1288375), (25, 876095), (55, 398225), (85, 257675), (125, 175219), (187, 117125), (275, 79645), (425, 51535), (935, 23425), (937, 23375), (1375, 15929), (2125, 10307), (4675, 4685)]