21000453604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{746497}}^1$

素因数の和:747055

約数の個数: 24

約数和(自身を含む): 39650987768

約数和(自身を除く): 18650534164

約数列:

[1, 2, 4, 13, 26, 52, 541, 1082, 2164, 7033, 14066, 28132, 746497, 1492994, 2985988, 9704461, 19408922, 38817844, 403854877, 807709754, 1615419508, 5250113401, 10500226802, 21000453604]

約数ペア:

[(1, 21000453604), (2, 10500226802), (4, 5250113401), (13, 1615419508), (26, 807709754), (52, 403854877), (541, 38817844), (1082, 19408922), (2164, 9704461), (7033, 2985988), (14066, 1492994), (28132, 746497)]