18972999

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{607}}^1$

素因数の和:787

約数の個数: 24

約数和(自身を含む): 28833792

約数和(自身を除く): 9860793

約数列:

[1, 3, 9, 23, 69, 151, 207, 453, 607, 1359, 1821, 3473, 5463, 10419, 13961, 31257, 41883, 91657, 125649, 274971, 824913, 2108111, 6324333, 18972999]

約数ペア:

[(1, 18972999), (3, 6324333), (9, 2108111), (23, 824913), (69, 274971), (151, 125649), (207, 91657), (453, 41883), (607, 31257), (1359, 13961), (1821, 10419), (3473, 5463)]