18887444

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{967}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 34964160

約数和(自身を除く): 16076716

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 967, 1028, 1934, 3868, 4883, 9766, 18373, 19532, 36746, 73492, 248519, 497038, 994076, 4721861, 9443722, 18887444]

約数ペア:

[(1, 18887444), (2, 9443722), (4, 4721861), (19, 994076), (38, 497038), (76, 248519), (257, 73492), (514, 36746), (967, 19532), (1028, 18373), (1934, 9766), (3868, 4883)]