21970850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:995

約数の個数: 48

約数和(自身を含む): 45666720

約数和(自身を除く): 23695870

約数列:

[1, 2, 5, 10, 11, 22, 25, 43, 50, 55, 86, 110, 215, 275, 430, 473, 550, 929, 946, 1075, 1858, 2150, 2365, 4645, 4730, 9290, 10219, 11825, 20438, 23225, 23650, 39947, 46450, 51095, 79894, 102190, 199735, 255475, 399470, 439417, 510950, 878834, 998675, 1997350, 2197085, 4394170, 10985425, 21970850]

約数ペア:

[(1, 21970850), (2, 10985425), (5, 4394170), (10, 2197085), (11, 1997350), (22, 998675), (25, 878834), (43, 510950), (50, 439417), (55, 399470), (86, 255475), (110, 199735), (215, 102190), (275, 79894), (430, 51095), (473, 46450), (550, 39947), (929, 23650), (946, 23225), (1075, 20438), (1858, 11825), (2150, 10219), (2365, 9290), (4645, 4730)]