21409156701

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{128521}}^1$

素因数の和:128833

約数の個数: 24

約数和(自身を含む): 31437509376

約数和(自身を除く): 10028352675

約数列:

[1, 3, 9, 83, 223, 249, 669, 747, 2007, 18509, 55527, 128521, 166581, 385563, 1156689, 10667243, 28660183, 32001729, 85980549, 96005187, 257941647, 2378795189, 7136385567, 21409156701]

約数ペア:

[(1, 21409156701), (3, 7136385567), (9, 2378795189), (83, 257941647), (223, 96005187), (249, 85980549), (669, 32001729), (747, 28660183), (2007, 10667243), (18509, 1156689), (55527, 385563), (128521, 166581)]