21572810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10627}}^1$

素因数の和:10670

約数の個数: 32

約数和(自身を含む): 45912960

約数和(自身を除く): 24340150

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10627, 21254, 53135, 74389, 106270, 148778, 308183, 371945, 616366, 743890, 1540915, 2157281, 3081830, 4314562, 10786405, 21572810]

約数ペア:

[(1, 21572810), (2, 10786405), (5, 4314562), (7, 3081830), (10, 2157281), (14, 1540915), (29, 743890), (35, 616366), (58, 371945), (70, 308183), (145, 148778), (203, 106270), (290, 74389), (406, 53135), (1015, 21254), (2030, 10627)]