20170605

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2111}}^1$

素因数の和:2146

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 20278419

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2111, 3185, 6333, 9555, 10555, 14777, 27443, 31665, 44331, 73885, 82329, 103439, 137215, 192101, 221655, 310317, 411645, 517195, 576303, 960505, 1344707, 1551585, 2881515, 4034121, 6723535, 20170605]

約数ペア:

[(1, 20170605), (3, 6723535), (5, 4034121), (7, 2881515), (13, 1551585), (15, 1344707), (21, 960505), (35, 576303), (39, 517195), (49, 411645), (65, 310317), (91, 221655), (105, 192101), (147, 137215), (195, 103439), (245, 82329), (273, 73885), (455, 44331), (637, 31665), (735, 27443), (1365, 14777), (1911, 10555), (2111, 9555), (3185, 6333)]