21662220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1619}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 60963840

約数和(自身を除く): 39301620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 223, 446, 669, 892, 1115, 1338, 1619, 2230, 2676, 3238, 3345, 4460, 4857, 6476, 6690, 8095, 9714, 13380, 16190, 19428, 24285, 32380, 48570, 97140, 361037, 722074, 1083111, 1444148, 1805185, 2166222, 3610370, 4332444, 5415555, 7220740, 10831110, 21662220]

約数ペア:

[(1, 21662220), (2, 10831110), (3, 7220740), (4, 5415555), (5, 4332444), (6, 3610370), (10, 2166222), (12, 1805185), (15, 1444148), (20, 1083111), (30, 722074), (60, 361037), (223, 97140), (446, 48570), (669, 32380), (892, 24285), (1115, 19428), (1338, 16190), (1619, 13380), (2230, 9714), (2676, 8095), (3238, 6690), (3345, 6476), (4460, 4857)]