21989850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4729}}^1$

素因数の和:4775

約数の個数: 48

約数和(自身を含む): 56305920

約数和(自身を除く): 34316070

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4650, 4729, 9458, 14187, 23645, 28374, 47290, 70935, 118225, 141870, 146599, 236450, 293198, 354675, 439797, 709350, 732995, 879594, 1465990, 2198985, 3664975, 4397970, 7329950, 10994925, 21989850]

約数ペア:

[(1, 21989850), (2, 10994925), (3, 7329950), (5, 4397970), (6, 3664975), (10, 2198985), (15, 1465990), (25, 879594), (30, 732995), (31, 709350), (50, 439797), (62, 354675), (75, 293198), (93, 236450), (150, 146599), (155, 141870), (186, 118225), (310, 70935), (465, 47290), (775, 28374), (930, 23645), (1550, 14187), (2325, 9458), (4650, 4729)]