20401551

素因数分解:

$3^5\times {\mathrm{59}}^1\times {\mathrm{1423}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 31100160

約数和(自身を除く): 10698609

約数列:

[1, 3, 9, 27, 59, 81, 177, 243, 531, 1423, 1593, 4269, 4779, 12807, 14337, 38421, 83957, 115263, 251871, 345789, 755613, 2266839, 6800517, 20401551]

約数ペア:

[(1, 20401551), (3, 6800517), (9, 2266839), (27, 755613), (59, 345789), (81, 251871), (177, 115263), (243, 83957), (531, 38421), (1423, 14337), (1593, 12807), (4269, 4779)]