21225758

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{11779}}^1$

素因数の和:11851

約数の個数: 16

約数和(自身を含む): 34350480

約数和(自身を除く): 13124722

約数列:

[1, 2, 17, 34, 53, 106, 901, 1802, 11779, 23558, 200243, 400486, 624287, 1248574, 10612879, 21225758]

約数ペア:

[(1, 21225758), (2, 10612879), (17, 1248574), (34, 624287), (53, 400486), (106, 200243), (901, 23558), (1802, 11779)]