21000815469

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{34827223}}^1$

素因数の和:34827296

約数の個数: 12

約数和(自身を含む): 30787266016

約数和(自身を除く): 9786450547

約数列:

[1, 3, 9, 67, 201, 603, 34827223, 104481669, 313445007, 2333423941, 7000271823, 21000815469]

約数ペア:

[(1, 21000815469), (3, 7000271823), (9, 2333423941), (67, 313445007), (201, 104481669), (603, 34827223)]