20466691

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 25385216

約数和(自身を除く): 4918525

約数列:

[1, 7, 17, 67, 119, 151, 289, 469, 1057, 1139, 2023, 2567, 7973, 10117, 17969, 19363, 43639, 70819, 135541, 171989, 305473, 1203923, 2923813, 20466691]

約数ペア:

[(1, 20466691), (7, 2923813), (17, 1203923), (67, 305473), (119, 171989), (151, 135541), (289, 70819), (469, 43639), (1057, 19363), (1139, 17969), (2023, 10117), (2567, 7973)]