64789641

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21881}}^1$

素因数の和:21941

約数の個数: 24

約数和(自身を含む): 109234944

約数和(自身を除く): 44445303

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 21881, 65643, 153167, 196929, 459501, 1028407, 1378503, 3085221, 7198849, 9255663, 21596547, 64789641]

約数ペア:

[(1, 64789641), (3, 21596547), (7, 9255663), (9, 7198849), (21, 3085221), (47, 1378503), (63, 1028407), (141, 459501), (329, 196929), (423, 153167), (987, 65643), (2961, 21881)]