20413351

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 4867289

約数列:

[1, 7, 23, 49, 59, 161, 307, 413, 1127, 1357, 2149, 2891, 7061, 9499, 15043, 18113, 49427, 66493, 126791, 345989, 416599, 887537, 2916193, 20413351]

約数ペア:

[(1, 20413351), (7, 2916193), (23, 887537), (49, 416599), (59, 345989), (161, 126791), (307, 66493), (413, 49427), (1127, 18113), (1357, 15043), (2149, 9499), (2891, 7061)]