72172321

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{859}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 81486720

約数和(自身を除く): 9314399

約数列:

[1, 13, 23, 281, 299, 859, 3653, 6463, 11167, 19757, 84019, 241379, 256841, 3137927, 5551717, 72172321]

約数ペア:

[(1, 72172321), (13, 5551717), (23, 3137927), (281, 256841), (299, 241379), (859, 84019), (3653, 19757), (6463, 11167)]