20996850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{19997}}^1$

素因数の和:20019

約数の個数: 48

約数和(自身を含む): 59514048

約数和(自身を除く): 38517198

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, 19997, 39994, 59991, 99985, 119982, 139979, 199970, 279958, 299955, 419937, 499925, 599910, 699895, 839874, 999850, 1399790, 1499775, 2099685, 2999550, 3499475, 4199370, 6998950, 10498425, 20996850]

約数ペア:

[(1, 20996850), (2, 10498425), (3, 6998950), (5, 4199370), (6, 3499475), (7, 2999550), (10, 2099685), (14, 1499775), (15, 1399790), (21, 999850), (25, 839874), (30, 699895), (35, 599910), (42, 499925), (50, 419937), (70, 299955), (75, 279958), (105, 199970), (150, 139979), (175, 119982), (210, 99985), (350, 59991), (525, 39994), (1050, 19997)]