21015124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9857}}^1$

素因数の和:9915

約数の個数: 24

約数和(自身を含む): 40575528

約数和(自身を除く): 19560404

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9857, 19714, 39428, 128141, 256282, 404137, 512564, 808274, 1616548, 5253781, 10507562, 21015124]

約数ペア:

[(1, 21015124), (2, 10507562), (4, 5253781), (13, 1616548), (26, 808274), (41, 512564), (52, 404137), (82, 256282), (164, 128141), (533, 39428), (1066, 19714), (2132, 9857)]