19948965

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{42901}}^1$

素因数の和:42940

約数の個数: 16

約数和(自身を含む): 32948736

約数和(自身を除く): 12999771

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 42901, 128703, 214505, 643515, 1329931, 3989793, 6649655, 19948965]

約数ペア:

[(1, 19948965), (3, 6649655), (5, 3989793), (15, 1329931), (31, 643515), (93, 214505), (155, 128703), (465, 42901)]