19654971

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5171}}^1$

素因数の和:5362

約数の個数: 16

約数和(自身を含む): 30121728

約数和(自身を除く): 10466757

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5171, 15513, 36197, 108591, 935951, 2807853, 6551657, 19654971]

約数ペア:

[(1, 19654971), (3, 6551657), (7, 2807853), (21, 935951), (181, 108591), (543, 36197), (1267, 15513), (3801, 5171)]