21875755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 29937600

約数和(自身を除く): 8061845

約数列:

[1, 5, 11, 41, 55, 89, 109, 205, 445, 451, 545, 979, 1199, 2255, 3649, 4469, 4895, 5995, 9701, 18245, 22345, 40139, 48505, 49159, 106711, 200695, 245795, 397741, 533555, 1988705, 4375151, 21875755]

約数ペア:

[(1, 21875755), (5, 4375151), (11, 1988705), (41, 533555), (55, 397741), (89, 245795), (109, 200695), (205, 106711), (445, 49159), (451, 48505), (545, 40139), (979, 22345), (1199, 18245), (2255, 9701), (3649, 5995), (4469, 4895)]