72816891

素因数分解:

$3^1\times 7^2\times {\mathrm{379}}^1\times {\mathrm{1307}}^1$

素因数の和:1703

約数の個数: 24

約数和(自身を含む): 113325120

約数和(自身を除く): 40508229

約数列:

[1, 3, 7, 21, 49, 147, 379, 1137, 1307, 2653, 3921, 7959, 9149, 18571, 27447, 55713, 64043, 192129, 495353, 1486059, 3467471, 10402413, 24272297, 72816891]

約数ペア:

[(1, 72816891), (3, 24272297), (7, 10402413), (21, 3467471), (49, 1486059), (147, 495353), (379, 192129), (1137, 64043), (1307, 55713), (2653, 27447), (3921, 18571), (7959, 9149)]