1215663421

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{1193}}^1\times {\mathrm{8563}}^1$

素因数の和:9780

約数の個数: 16

約数和(自身を含む): 1472459904

約数和(自身を除く): 256796483

約数列:

[1, 7, 17, 119, 1193, 8351, 8563, 20281, 59941, 141967, 145571, 1018997, 10215659, 71509613, 173666203, 1215663421]

約数ペア:

[(1, 1215663421), (7, 173666203), (17, 71509613), (119, 10215659), (1193, 1018997), (8351, 145571), (8563, 141967), (20281, 59941)]