72990911

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 91819008

約数和(自身を除く): 18828097

約数列:

[1, 7, 17, 53, 71, 119, 163, 371, 497, 901, 1141, 1207, 2771, 3763, 6307, 8449, 8639, 11573, 19397, 26341, 60473, 63971, 81011, 146863, 196741, 447797, 613369, 1028041, 1377187, 4293583, 10427273, 72990911]

約数ペア:

[(1, 72990911), (7, 10427273), (17, 4293583), (53, 1377187), (71, 1028041), (119, 613369), (163, 447797), (371, 196741), (497, 146863), (901, 81011), (1141, 63971), (1207, 60473), (2771, 26341), (3763, 19397), (6307, 11573), (8449, 8639)]