20893145

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1049

約数の個数: 32

約数和(自身を含む): 31546368

約数和(自身を除く): 10653223

約数列:

[1, 5, 7, 13, 35, 47, 65, 91, 235, 329, 455, 611, 977, 1645, 3055, 4277, 4885, 6839, 12701, 21385, 34195, 45919, 63505, 88907, 229595, 321433, 444535, 596947, 1607165, 2984735, 4178629, 20893145]

約数ペア:

[(1, 20893145), (5, 4178629), (7, 2984735), (13, 1607165), (35, 596947), (47, 444535), (65, 321433), (91, 229595), (235, 88907), (329, 63505), (455, 45919), (611, 34195), (977, 21385), (1645, 12701), (3055, 6839), (4277, 4885)]