21409230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1103}}^1$

素因数の和:1760

約数の個数: 32

約数和(自身を含む): 51508224

約数和(自身を除く): 30098994

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 647, 1103, 1294, 1941, 2206, 3235, 3309, 3882, 5515, 6470, 6618, 9705, 11030, 16545, 19410, 33090, 713641, 1427282, 2140923, 3568205, 4281846, 7136410, 10704615, 21409230]

約数ペア:

[(1, 21409230), (2, 10704615), (3, 7136410), (5, 4281846), (6, 3568205), (10, 2140923), (15, 1427282), (30, 713641), (647, 33090), (1103, 19410), (1294, 16545), (1941, 11030), (2206, 9705), (3235, 6618), (3309, 6470), (3882, 5515)]