18207748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 19047932

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 479, 559, 731, 884, 958, 1118, 1462, 1916, 2236, 2924, 6227, 8143, 9503, 12454, 16286, 19006, 20597, 24908, 32572, 38012, 41194, 82388, 105859, 211718, 267761, 350149, 423436, 535522, 700298, 1071044, 1400596, 4551937, 9103874, 18207748]

約数ペア:

[(1, 18207748), (2, 9103874), (4, 4551937), (13, 1400596), (17, 1071044), (26, 700298), (34, 535522), (43, 423436), (52, 350149), (68, 267761), (86, 211718), (172, 105859), (221, 82388), (442, 41194), (479, 38012), (559, 32572), (731, 24908), (884, 20597), (958, 19006), (1118, 16286), (1462, 12454), (1916, 9503), (2236, 8143), (2924, 6227)]