19950231

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 14886249

約数列:

[1, 3, 7, 17, 21, 29, 41, 47, 51, 87, 119, 123, 141, 203, 287, 329, 357, 493, 609, 697, 799, 861, 987, 1189, 1363, 1479, 1927, 2091, 2397, 3451, 3567, 4089, 4879, 5593, 5781, 8323, 9541, 10353, 13489, 14637, 16779, 20213, 23171, 24969, 28623, 32759, 40467, 55883, 60639, 69513, 98277, 141491, 162197, 167649, 229313, 391181, 424473, 486591, 687939, 950011, 1173543, 2850033, 6650077, 19950231]

約数ペア:

[(1, 19950231), (3, 6650077), (7, 2850033), (17, 1173543), (21, 950011), (29, 687939), (41, 486591), (47, 424473), (51, 391181), (87, 229313), (119, 167649), (123, 162197), (141, 141491), (203, 98277), (287, 69513), (329, 60639), (357, 55883), (493, 40467), (609, 32759), (697, 28623), (799, 24969), (861, 23171), (987, 20213), (1189, 16779), (1363, 14637), (1479, 13489), (1927, 10353), (2091, 9541), (2397, 8323), (3451, 5781), (3567, 5593), (4089, 4879)]