21078434

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{5441}}^1$

素因数の和:5605

約数の個数: 16

約数和(自身を含む): 34284600

約数和(自身を除く): 13206166

約数列:

[1, 2, 13, 26, 149, 298, 1937, 3874, 5441, 10882, 70733, 141466, 810709, 1621418, 10539217, 21078434]

約数ペア:

[(1, 21078434), (2, 10539217), (13, 1621418), (26, 810709), (149, 141466), (298, 70733), (1937, 10882), (3874, 5441)]