21675540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1499}}^1$

素因数の和:1752

約数の個数: 48

約数和(自身を含む): 60984000

約数和(自身を除く): 39308460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 241, 482, 723, 964, 1205, 1446, 1499, 2410, 2892, 2998, 3615, 4497, 4820, 5996, 7230, 7495, 8994, 14460, 14990, 17988, 22485, 29980, 44970, 89940, 361259, 722518, 1083777, 1445036, 1806295, 2167554, 3612590, 4335108, 5418885, 7225180, 10837770, 21675540]

約数ペア:

[(1, 21675540), (2, 10837770), (3, 7225180), (4, 5418885), (5, 4335108), (6, 3612590), (10, 2167554), (12, 1806295), (15, 1445036), (20, 1083777), (30, 722518), (60, 361259), (241, 89940), (482, 44970), (723, 29980), (964, 22485), (1205, 17988), (1446, 14990), (1499, 14460), (2410, 8994), (2892, 7495), (2998, 7230), (3615, 5996), (4497, 4820)]