21520235516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2740733}}^1$

素因数の和:2740901

約数の個数: 24

約数和(自身を含む): 40825973664

約数和(自身を除く): 19305738148

約数列:

[1, 2, 4, 13, 26, 52, 151, 302, 604, 1963, 3926, 7852, 2740733, 5481466, 10962932, 35629529, 71259058, 142518116, 413850683, 827701366, 1655402732, 5380058879, 10760117758, 21520235516]

約数ペア:

[(1, 21520235516), (2, 10760117758), (4, 5380058879), (13, 1655402732), (26, 827701366), (52, 413850683), (151, 142518116), (302, 71259058), (604, 35629529), (1963, 10962932), (3926, 5481466), (7852, 2740733)]