20206458

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 45130176

約数和(自身を除く): 24923718

約数列:

[1, 2, 3, 6, 9, 18, 71, 97, 142, 163, 194, 213, 291, 326, 426, 489, 582, 639, 873, 978, 1278, 1467, 1746, 2934, 6887, 11573, 13774, 15811, 20661, 23146, 31622, 34719, 41322, 47433, 61983, 69438, 94866, 104157, 123966, 142299, 208314, 284598, 1122581, 2245162, 3367743, 6735486, 10103229, 20206458]

約数ペア:

[(1, 20206458), (2, 10103229), (3, 6735486), (6, 3367743), (9, 2245162), (18, 1122581), (71, 284598), (97, 208314), (142, 142299), (163, 123966), (194, 104157), (213, 94866), (291, 69438), (326, 61983), (426, 47433), (489, 41322), (582, 34719), (639, 31622), (873, 23146), (978, 20661), (1278, 15811), (1467, 13774), (1746, 11573), (2934, 6887)]