19991846

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1201}}^1$

素因数の和:1280

約数の個数: 32

約数和(自身を含む): 36348480

約数和(自身を除く): 16356634

約数列:

[1, 2, 7, 14, 29, 41, 58, 82, 203, 287, 406, 574, 1189, 1201, 2378, 2402, 8323, 8407, 16646, 16814, 34829, 49241, 69658, 98482, 243803, 344687, 487606, 689374, 1427989, 2855978, 9995923, 19991846]

約数ペア:

[(1, 19991846), (2, 9995923), (7, 2855978), (14, 1427989), (29, 689374), (41, 487606), (58, 344687), (82, 243803), (203, 98482), (287, 69658), (406, 49241), (574, 34829), (1189, 16814), (1201, 16646), (2378, 8407), (2402, 8323)]