138889737

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{16829}}^1$

素因数の和:16973

約数の個数: 24

約数和(自身を含む): 231042240

約数和(自身を除く): 92152503

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 8253, 16829, 50487, 117803, 151461, 353409, 1060227, 2204599, 6613797, 15432193, 19841391, 46296579, 138889737]

約数ペア:

[(1, 138889737), (3, 46296579), (7, 19841391), (9, 15432193), (21, 6613797), (63, 2204599), (131, 1060227), (393, 353409), (917, 151461), (1179, 117803), (2751, 50487), (8253, 16829)]