20391202

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 35944128

約数和(自身を除く): 15552926

約数列:

[1, 2, 13, 23, 26, 43, 46, 61, 86, 122, 169, 299, 338, 559, 598, 793, 989, 1118, 1403, 1586, 1978, 2623, 2806, 3887, 5246, 7267, 7774, 10309, 12857, 14534, 18239, 20618, 25714, 34099, 36478, 60329, 68198, 120658, 167141, 237107, 334282, 443287, 474214, 784277, 886574, 1568554, 10195601, 20391202]

約数ペア:

[(1, 20391202), (2, 10195601), (13, 1568554), (23, 886574), (26, 784277), (43, 474214), (46, 443287), (61, 334282), (86, 237107), (122, 167141), (169, 120658), (299, 68198), (338, 60329), (559, 36478), (598, 34099), (793, 25714), (989, 20618), (1118, 18239), (1403, 14534), (1586, 12857), (1978, 10309), (2623, 7774), (2806, 7267), (3887, 5246)]