21808965

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{46901}}^1$

素因数の和:46940

約数の個数: 16

約数和(自身を含む): 36020736

約数和(自身を除く): 14211771

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 46901, 140703, 234505, 703515, 1453931, 4361793, 7269655, 21808965]

約数ペア:

[(1, 21808965), (3, 7269655), (5, 4361793), (15, 1453931), (31, 703515), (93, 234505), (155, 140703), (465, 46901)]