20520702

素因数分解:

$2^1\times 3^4\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:854

約数の個数: 40

約数和(自身を含む): 46286856

約数和(自身を除く): 25766154

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 197, 394, 591, 643, 1182, 1286, 1773, 1929, 3546, 3858, 5319, 5787, 10638, 11574, 15957, 17361, 31914, 34722, 52083, 104166, 126671, 253342, 380013, 760026, 1140039, 2280078, 3420117, 6840234, 10260351, 20520702]

約数ペア:

[(1, 20520702), (2, 10260351), (3, 6840234), (6, 3420117), (9, 2280078), (18, 1140039), (27, 760026), (54, 380013), (81, 253342), (162, 126671), (197, 104166), (394, 52083), (591, 34722), (643, 31914), (1182, 17361), (1286, 15957), (1773, 11574), (1929, 10638), (3546, 5787), (3858, 5319)]