21250980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118061}}^1$

素因数の和:118076

約数の個数: 36

約数和(自身を含む): 64461852

約数和(自身を除く): 43210872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118061, 236122, 354183, 472244, 590305, 708366, 1062549, 1180610, 1416732, 1770915, 2125098, 2361220, 3541830, 4250196, 5312745, 7083660, 10625490, 21250980]

約数ペア:

[(1, 21250980), (2, 10625490), (3, 7083660), (4, 5312745), (5, 4250196), (6, 3541830), (9, 2361220), (10, 2125098), (12, 1770915), (15, 1416732), (18, 1180610), (20, 1062549), (30, 708366), (36, 590305), (45, 472244), (60, 354183), (90, 236122), (180, 118061)]