20704016

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 42252504

約数和(自身を除く): 21548488

約数列:

[1, 2, 4, 8, 16, 37, 41, 74, 82, 148, 164, 296, 328, 592, 656, 853, 1517, 1706, 3034, 3412, 6068, 6824, 12136, 13648, 24272, 31561, 34973, 63122, 69946, 126244, 139892, 252488, 279784, 504976, 559568, 1294001, 2588002, 5176004, 10352008, 20704016]

約数ペア:

[(1, 20704016), (2, 10352008), (4, 5176004), (8, 2588002), (16, 1294001), (37, 559568), (41, 504976), (74, 279784), (82, 252488), (148, 139892), (164, 126244), (296, 69946), (328, 63122), (592, 34973), (656, 31561), (853, 24272), (1517, 13648), (1706, 12136), (3034, 6824), (3412, 6068)]