20543116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1109}}^1$

素因数の和:1545

約数の個数: 24

約数和(自身を含む): 39347280

約数和(自身を除く): 18804164

約数列:

[1, 2, 4, 11, 22, 44, 421, 842, 1109, 1684, 2218, 4436, 4631, 9262, 12199, 18524, 24398, 48796, 466889, 933778, 1867556, 5135779, 10271558, 20543116]

約数ペア:

[(1, 20543116), (2, 10271558), (4, 5135779), (11, 1867556), (22, 933778), (44, 466889), (421, 48796), (842, 24398), (1109, 18524), (1684, 12199), (2218, 9262), (4436, 4631)]