247422021

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{21859}}^1$

素因数の和:21894

約数の個数: 32

約数和(自身を含む): 419712000

約数和(自身を除く): 172289979

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 343, 539, 1029, 1617, 3773, 11319, 21859, 65577, 153013, 240449, 459039, 721347, 1071091, 1683143, 3213273, 5049429, 7497637, 11782001, 22492911, 35346003, 82474007, 247422021]

約数ペア:

[(1, 247422021), (3, 82474007), (7, 35346003), (11, 22492911), (21, 11782001), (33, 7497637), (49, 5049429), (77, 3213273), (147, 1683143), (231, 1071091), (343, 721347), (539, 459039), (1029, 240449), (1617, 153013), (3773, 65577), (11319, 21859)]