21941678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 37919232

約数和(自身を除く): 15977554

約数列:

[1, 2, 11, 22, 23, 46, 103, 206, 253, 421, 506, 842, 1133, 2266, 2369, 4631, 4738, 9262, 9683, 19366, 26059, 43363, 52118, 86726, 106513, 213026, 476993, 953986, 997349, 1994698, 10970839, 21941678]

約数ペア:

[(1, 21941678), (2, 10970839), (11, 1994698), (22, 997349), (23, 953986), (46, 476993), (103, 213026), (206, 106513), (253, 86726), (421, 52118), (506, 43363), (842, 26059), (1133, 19366), (2266, 9683), (2369, 9262), (4631, 4738)]