21390382

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13487}}^1$

素因数の和:13563

約数の個数: 16

約数和(自身を含む): 35122752

約数和(自身を除く): 13732370

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 13487, 26974, 175331, 350662, 822707, 1645414, 10695191, 21390382]

約数ペア:

[(1, 21390382), (2, 10695191), (13, 1645414), (26, 822707), (61, 350662), (122, 175331), (793, 26974), (1586, 13487)]