21093436

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 45835776

約数和(自身を除く): 24742340

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 167, 182, 334, 347, 364, 668, 694, 1169, 1388, 2171, 2338, 2429, 4342, 4511, 4676, 4858, 8684, 9022, 9716, 15197, 18044, 30394, 31577, 57949, 60788, 63154, 115898, 126308, 231796, 405643, 753337, 811286, 1506674, 1622572, 3013348, 5273359, 10546718, 21093436]

約数ペア:

[(1, 21093436), (2, 10546718), (4, 5273359), (7, 3013348), (13, 1622572), (14, 1506674), (26, 811286), (28, 753337), (52, 405643), (91, 231796), (167, 126308), (182, 115898), (334, 63154), (347, 60788), (364, 57949), (668, 31577), (694, 30394), (1169, 18044), (1388, 15197), (2171, 9716), (2338, 9022), (2429, 8684), (4342, 4858), (4511, 4676)]