139756897

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 171638784

約数和(自身を除く): 31881887

約数列:

[1, 7, 31, 47, 71, 193, 217, 329, 497, 1351, 1457, 2201, 3337, 5983, 9071, 10199, 13703, 15407, 23359, 41881, 63497, 95921, 103447, 281201, 424793, 644041, 724129, 1968407, 2973551, 4508287, 19965271, 139756897]

約数ペア:

[(1, 139756897), (7, 19965271), (31, 4508287), (47, 2973551), (71, 1968407), (193, 724129), (217, 644041), (329, 424793), (497, 281201), (1351, 103447), (1457, 95921), (2201, 63497), (3337, 41881), (5983, 23359), (9071, 15407), (10199, 13703)]