21924815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 8868145

約数列:

[1, 5, 11, 17, 55, 85, 131, 179, 187, 655, 895, 935, 1441, 1969, 2227, 3043, 7205, 9845, 11135, 15215, 23449, 24497, 33473, 117245, 122485, 167365, 257939, 398633, 1289695, 1993165, 4384963, 21924815]

約数ペア:

[(1, 21924815), (5, 4384963), (11, 1993165), (17, 1289695), (55, 398633), (85, 257939), (131, 167365), (179, 122485), (187, 117245), (655, 33473), (895, 24497), (935, 23449), (1441, 15215), (1969, 11135), (2227, 9845), (3043, 7205)]