18911824

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 37997568

約数和(自身を除く): 19085744

約数列:

[1, 2, 4, 8, 16, 41, 82, 127, 164, 227, 254, 328, 454, 508, 656, 908, 1016, 1816, 2032, 3632, 5207, 9307, 10414, 18614, 20828, 28829, 37228, 41656, 57658, 74456, 83312, 115316, 148912, 230632, 461264, 1181989, 2363978, 4727956, 9455912, 18911824]

約数ペア:

[(1, 18911824), (2, 9455912), (4, 4727956), (8, 2363978), (16, 1181989), (41, 461264), (82, 230632), (127, 148912), (164, 115316), (227, 83312), (254, 74456), (328, 57658), (454, 41656), (508, 37228), (656, 28829), (908, 20828), (1016, 18614), (1816, 10414), (2032, 9307), (3632, 5207)]