64718997

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{8537}}^1$

素因数の和:8585

約数の個数: 24

約数和(自身を含む): 104095296

約数和(自身を除く): 39376299

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 8537, 25611, 59759, 162203, 179277, 486609, 1135421, 3081857, 3406263, 9245571, 21572999, 64718997]

約数ペア:

[(1, 64718997), (3, 21572999), (7, 9245571), (19, 3406263), (21, 3081857), (57, 1135421), (133, 486609), (361, 179277), (399, 162203), (1083, 59759), (2527, 25611), (7581, 8537)]