19994505

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 13183095

約数列:

[1, 3, 5, 15, 47, 79, 141, 235, 237, 359, 395, 705, 1077, 1185, 1795, 3713, 5385, 11139, 16873, 18565, 28361, 50619, 55695, 84365, 85083, 141805, 253095, 425415, 1332967, 3998901, 6664835, 19994505]

約数ペア:

[(1, 19994505), (3, 6664835), (5, 3998901), (15, 1332967), (47, 425415), (79, 253095), (141, 141805), (235, 85083), (237, 84365), (359, 55695), (395, 50619), (705, 28361), (1077, 18565), (1185, 16873), (1795, 11139), (3713, 5385)]