20354828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1987}}^1$

素因数の和:2201

約数の個数: 24

約数和(自身を含む): 38575152

約数和(自身を除く): 18220324

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 1987, 2561, 3974, 5122, 7948, 10244, 25831, 51662, 103324, 391439, 782878, 1565756, 5088707, 10177414, 20354828]

約数ペア:

[(1, 20354828), (2, 10177414), (4, 5088707), (13, 1565756), (26, 782878), (52, 391439), (197, 103324), (394, 51662), (788, 25831), (1987, 10244), (2561, 7948), (3974, 5122)]