21285540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118253}}^1$

素因数の和:118268

約数の個数: 36

約数和(自身を含む): 64566684

約数和(自身を除く): 43281144

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118253, 236506, 354759, 473012, 591265, 709518, 1064277, 1182530, 1419036, 1773795, 2128554, 2365060, 3547590, 4257108, 5321385, 7095180, 10642770, 21285540]

約数ペア:

[(1, 21285540), (2, 10642770), (3, 7095180), (4, 5321385), (5, 4257108), (6, 3547590), (9, 2365060), (10, 2128554), (12, 1773795), (15, 1419036), (18, 1182530), (20, 1064277), (30, 709518), (36, 591265), (45, 473012), (60, 354759), (90, 236506), (180, 118253)]