21067067

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1049}}^1$

素因数の和:1226

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 4468933

約数列:

[1, 7, 19, 133, 151, 1049, 1057, 2869, 7343, 19931, 20083, 139517, 158399, 1108793, 3009581, 21067067]

約数ペア:

[(1, 21067067), (7, 3009581), (19, 1108793), (133, 158399), (151, 139517), (1049, 20083), (1057, 19931), (2869, 7343)]