18642741

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 27941760

約数和(自身を除く): 9299019

約数列:

[1, 3, 13, 39, 41, 89, 123, 131, 267, 393, 533, 1157, 1599, 1703, 3471, 3649, 5109, 5371, 10947, 11659, 16113, 34977, 47437, 69823, 142311, 151567, 209469, 454701, 478019, 1434057, 6214247, 18642741]

約数ペア:

[(1, 18642741), (3, 6214247), (13, 1434057), (39, 478019), (41, 454701), (89, 209469), (123, 151567), (131, 142311), (267, 69823), (393, 47437), (533, 34977), (1157, 16113), (1599, 11659), (1703, 10947), (3471, 5371), (3649, 5109)]