21719425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9547}}^1$

素因数の和:9577

約数の個数: 24

約数和(自身を含む): 33150656

約数和(自身を除く): 11431231

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 9547, 47735, 66829, 124111, 238675, 334145, 620555, 868777, 1670725, 3102775, 4343885, 21719425]

約数ペア:

[(1, 21719425), (5, 4343885), (7, 3102775), (13, 1670725), (25, 868777), (35, 620555), (65, 334145), (91, 238675), (175, 124111), (325, 66829), (455, 47735), (2275, 9547)]