20199402018

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{968239}}^1$

素因数の和:968327

約数の個数: 48

約数和(自身を含む): 46824086400

約数和(自身を除く): 26624684382

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 61, 114, 122, 171, 183, 342, 366, 549, 1098, 1159, 2318, 3477, 6954, 10431, 20862, 968239, 1936478, 2904717, 5809434, 8714151, 17428302, 18396541, 36793082, 55189623, 59062579, 110379246, 118125158, 165568869, 177187737, 331137738, 354375474, 531563211, 1063126422, 1122189001, 2244378002, 3366567003, 6733134006, 10099701009, 20199402018]

約数ペア:

[(1, 20199402018), (2, 10099701009), (3, 6733134006), (6, 3366567003), (9, 2244378002), (18, 1122189001), (19, 1063126422), (38, 531563211), (57, 354375474), (61, 331137738), (114, 177187737), (122, 165568869), (171, 118125158), (183, 110379246), (342, 59062579), (366, 55189623), (549, 36793082), (1098, 18396541), (1159, 17428302), (2318, 8714151), (3477, 5809434), (6954, 2904717), (10431, 1936478), (20862, 968239)]