19204731

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15389829

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 131, 179, 273, 393, 537, 819, 917, 1179, 1253, 1611, 1703, 2327, 2751, 3759, 5109, 6981, 8253, 11277, 11921, 15327, 16289, 20943, 23449, 35763, 48867, 70347, 107289, 146601, 164143, 211041, 304837, 492429, 914511, 1477287, 2133859, 2743533, 6401577, 19204731]

約数ペア:

[(1, 19204731), (3, 6401577), (7, 2743533), (9, 2133859), (13, 1477287), (21, 914511), (39, 492429), (63, 304837), (91, 211041), (117, 164143), (131, 146601), (179, 107289), (273, 70347), (393, 48867), (537, 35763), (819, 23449), (917, 20943), (1179, 16289), (1253, 15327), (1611, 11921), (1703, 11277), (2327, 8253), (2751, 6981), (3759, 5109)]