21535413

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 31092960

約数和(自身を除く): 9557547

約数列:

[1, 3, 17, 51, 59, 177, 289, 421, 867, 1003, 1263, 3009, 7157, 17051, 21471, 24839, 51153, 74517, 121669, 365007, 422263, 1266789, 7178471, 21535413]

約数ペア:

[(1, 21535413), (3, 7178471), (17, 1266789), (51, 422263), (59, 365007), (177, 121669), (289, 74517), (421, 51153), (867, 24839), (1003, 21471), (1263, 17051), (3009, 7157)]