21899850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{20857}}^1$

素因数の和:20879

約数の個数: 48

約数和(自身を含む): 62073408

約数和(自身を除く): 40173558

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 150, 175, 210, 350, 525, 1050, 20857, 41714, 62571, 104285, 125142, 145999, 208570, 291998, 312855, 437997, 521425, 625710, 729995, 875994, 1042850, 1459990, 1564275, 2189985, 3128550, 3649975, 4379970, 7299950, 10949925, 21899850]

約数ペア:

[(1, 21899850), (2, 10949925), (3, 7299950), (5, 4379970), (6, 3649975), (7, 3128550), (10, 2189985), (14, 1564275), (15, 1459990), (21, 1042850), (25, 875994), (30, 729995), (35, 625710), (42, 521425), (50, 437997), (70, 312855), (75, 291998), (105, 208570), (150, 145999), (175, 125142), (210, 104285), (350, 62571), (525, 41714), (1050, 20857)]