19989704

素因数分解:

$2^3\times 7^1\times {\mathrm{356959}}^1$

素因数の和:356972

約数の個数: 16

約数和(自身を含む): 42835200

約数和(自身を除く): 22845496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 356959, 713918, 1427836, 2498713, 2855672, 4997426, 9994852, 19989704]

約数ペア:

[(1, 19989704), (2, 9994852), (4, 4997426), (7, 2855672), (8, 2498713), (14, 1427836), (28, 713918), (56, 356959)]