20555890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120917}}^1$

素因数の和:120941

約数の個数: 16

約数和(自身を含む): 39177432

約数和(自身を除く): 18621542

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120917, 241834, 604585, 1209170, 2055589, 4111178, 10277945, 20555890]

約数ペア:

[(1, 20555890), (2, 10277945), (5, 4111178), (10, 2055589), (17, 1209170), (34, 604585), (85, 241834), (170, 120917)]