210519

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:148

約数の個数: 20

約数和(自身を含む): 331056

約数和(自身を除く): 120537

約数列:

[1, 3, 9, 23, 27, 69, 81, 113, 207, 339, 621, 1017, 1863, 2599, 3051, 7797, 9153, 23391, 70173, 210519]

約数ペア:

[(1, 210519), (3, 70173), (9, 23391), (23, 9153), (27, 7797), (69, 3051), (81, 2599), (113, 1863), (207, 1017), (339, 621)]