21028873185

素因数分解:

$3^3\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{90511}}^1$

素因数の和:92246

約数の個数: 32

約数和(自身を含む): 37406799360

約数和(自身を除く): 16377926175

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1721, 5163, 8605, 15489, 25815, 46467, 77445, 90511, 232335, 271533, 452555, 814599, 1357665, 2443797, 4072995, 12218985, 155769431, 467308293, 778847155, 1401924879, 2336541465, 4205774637, 7009624395, 21028873185]

約数ペア:

[(1, 21028873185), (3, 7009624395), (5, 4205774637), (9, 2336541465), (15, 1401924879), (27, 778847155), (45, 467308293), (135, 155769431), (1721, 12218985), (5163, 4072995), (8605, 2443797), (15489, 1357665), (25815, 814599), (46467, 452555), (77445, 271533), (90511, 232335)]