21659940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40111}}^1$

素因数の和:40129

約数の個数: 48

約数和(自身を含む): 67388160

約数和(自身を除く): 45728220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40111, 80222, 120333, 160444, 200555, 240666, 360999, 401110, 481332, 601665, 721998, 802220, 1082997, 1203330, 1443996, 1804995, 2165994, 2406660, 3609990, 4331988, 5414985, 7219980, 10829970, 21659940]

約数ペア:

[(1, 21659940), (2, 10829970), (3, 7219980), (4, 5414985), (5, 4331988), (6, 3609990), (9, 2406660), (10, 2165994), (12, 1804995), (15, 1443996), (18, 1203330), (20, 1082997), (27, 802220), (30, 721998), (36, 601665), (45, 481332), (54, 401110), (60, 360999), (90, 240666), (108, 200555), (135, 160444), (180, 120333), (270, 80222), (540, 40111)]