20676908

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 43728384

約数和(自身を除く): 23051476

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 97, 161, 194, 322, 331, 388, 644, 662, 679, 1324, 1358, 2231, 2317, 2716, 4462, 4634, 7613, 8924, 9268, 15226, 15617, 30452, 31234, 32107, 53291, 62468, 64214, 106582, 128428, 213164, 224749, 449498, 738461, 898996, 1476922, 2953844, 5169227, 10338454, 20676908]

約数ペア:

[(1, 20676908), (2, 10338454), (4, 5169227), (7, 2953844), (14, 1476922), (23, 898996), (28, 738461), (46, 449498), (92, 224749), (97, 213164), (161, 128428), (194, 106582), (322, 64214), (331, 62468), (388, 53291), (644, 32107), (662, 31234), (679, 30452), (1324, 15617), (1358, 15226), (2231, 9268), (2317, 8924), (2716, 7613), (4462, 4634)]