81303411

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{503}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 127733760

約数和(自身を除く): 46430349

約数列:

[1, 3, 7, 21, 43, 129, 179, 301, 503, 537, 903, 1253, 1509, 3521, 3759, 7697, 10563, 21629, 23091, 53879, 64887, 90037, 151403, 161637, 270111, 454209, 630259, 1890777, 3871591, 11614773, 27101137, 81303411]

約数ペア:

[(1, 81303411), (3, 27101137), (7, 11614773), (21, 3871591), (43, 1890777), (129, 630259), (179, 454209), (301, 270111), (503, 161637), (537, 151403), (903, 90037), (1253, 64887), (1509, 53879), (3521, 23091), (3759, 21629), (7697, 10563)]