721121284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{338237}}^1$

素因数の和:338295

約数の個数: 24

約数和(自身を含む): 1392187608

約数和(自身を除く): 671066324

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 338237, 676474, 1352948, 4397081, 8794162, 13867717, 17588324, 27735434, 55470868, 180280321, 360560642, 721121284]

約数ペア:

[(1, 721121284), (2, 360560642), (4, 180280321), (13, 55470868), (26, 27735434), (41, 17588324), (52, 13867717), (82, 8794162), (164, 4397081), (533, 1352948), (1066, 676474), (2132, 338237)]