645205120581

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{28421881}}^1$

素因数の和:28421961

約数の個数: 32

約数和(自身を含む): 1047744258048

約数和(自身を除く): 402539137467

約数列:

[1, 3, 7, 21, 23, 47, 69, 141, 161, 329, 483, 987, 1081, 3243, 7567, 22701, 28421881, 85265643, 198953167, 596859501, 653703263, 1335828407, 1961109789, 4007485221, 4575922841, 9350798849, 13727768523, 28052396547, 30724053361, 92172160083, 215068373527, 645205120581]

約数ペア:

[(1, 645205120581), (3, 215068373527), (7, 92172160083), (21, 30724053361), (23, 28052396547), (47, 13727768523), (69, 9350798849), (141, 4575922841), (161, 4007485221), (329, 1961109789), (483, 1335828407), (987, 653703263), (1081, 596859501), (3243, 198953167), (7567, 85265643), (22701, 28421881)]