20121388315

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{683}}^1\times {\mathrm{17909}}^1$

素因数の和:18651

約数の個数: 32

約数和(自身を含む): 28225013760

約数和(自身を除く): 8103625445

約数列:

[1, 5, 7, 35, 47, 235, 329, 683, 1645, 3415, 4781, 17909, 23905, 32101, 89545, 125363, 160505, 224707, 626815, 841723, 1123535, 4208615, 5892061, 12231847, 29460305, 61159235, 85622929, 428114645, 574896809, 2874484045, 4024277663, 20121388315]

約数ペア:

[(1, 20121388315), (5, 4024277663), (7, 2874484045), (35, 574896809), (47, 428114645), (235, 85622929), (329, 61159235), (683, 29460305), (1645, 12231847), (3415, 5892061), (4781, 4208615), (17909, 1123535), (23905, 841723), (32101, 626815), (89545, 224707), (125363, 160505)]