18490516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 37477440

約数和(自身を除く): 18986924

約数列:

[1, 2, 4, 11, 22, 29, 43, 44, 58, 86, 116, 172, 319, 337, 473, 638, 674, 946, 1247, 1276, 1348, 1892, 2494, 3707, 4988, 7414, 9773, 13717, 14491, 14828, 19546, 27434, 28982, 39092, 54868, 57964, 107503, 159401, 215006, 318802, 420239, 430012, 637604, 840478, 1680956, 4622629, 9245258, 18490516]

約数ペア:

[(1, 18490516), (2, 9245258), (4, 4622629), (11, 1680956), (22, 840478), (29, 637604), (43, 430012), (44, 420239), (58, 318802), (86, 215006), (116, 159401), (172, 107503), (319, 57964), (337, 54868), (473, 39092), (638, 28982), (674, 27434), (946, 19546), (1247, 14828), (1276, 14491), (1348, 13717), (1892, 9773), (2494, 7414), (3707, 4988)]