21903997731

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7561}}^1\times {\mathrm{12541}}^1$

素因数の和:20123

約数の個数: 32

約数和(自身を含む): 36419559936

約数和(自身を除く): 14515562205

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 7561, 12541, 22683, 37623, 52927, 83171, 87787, 137951, 158781, 249513, 263361, 413853, 582197, 965657, 1746591, 2896971, 94822501, 284467503, 663757507, 1043047511, 1991272521, 3129142533, 7301332577, 21903997731]

約数ペア:

[(1, 21903997731), (3, 7301332577), (7, 3129142533), (11, 1991272521), (21, 1043047511), (33, 663757507), (77, 284467503), (231, 94822501), (7561, 2896971), (12541, 1746591), (22683, 965657), (37623, 582197), (52927, 413853), (83171, 263361), (87787, 249513), (137951, 158781)]