21991881721

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{127}}^1\times {\mathrm{10837}}^1$

素因数の和:11041

約数の個数: 24

約数和(自身を含む): 24166138880

約数和(自身を除く): 2174257159

約数列:

[1, 19, 29, 127, 551, 841, 2413, 3683, 10837, 15979, 69977, 106807, 205903, 314273, 1376299, 2029333, 5971187, 9113917, 26149681, 39912671, 173164423, 758340749, 1157467459, 21991881721]

約数ペア:

[(1, 21991881721), (19, 1157467459), (29, 758340749), (127, 173164423), (551, 39912671), (841, 26149681), (2413, 9113917), (3683, 5971187), (10837, 2029333), (15979, 1376299), (69977, 314273), (106807, 205903)]