20258788

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2203}}^1$

素因数の和:2248

約数の個数: 36

約数和(自身を含む): 41038480

約数和(自身を除く): 20779692

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2203, 2299, 4406, 4598, 8812, 9196, 24233, 41857, 48466, 83714, 96932, 167428, 266563, 460427, 533126, 920854, 1066252, 1841708, 5064697, 10129394, 20258788]

約数ペア:

[(1, 20258788), (2, 10129394), (4, 5064697), (11, 1841708), (19, 1066252), (22, 920854), (38, 533126), (44, 460427), (76, 266563), (121, 167428), (209, 96932), (242, 83714), (418, 48466), (484, 41857), (836, 24233), (2203, 9196), (2299, 8812), (4406, 4598)]