20549192

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2477}}^1$

素因数の和:2561

約数の個数: 32

約数和(自身を含む): 41481720

約数和(自身を除く): 20932528

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 2477, 4148, 4954, 8296, 9908, 19816, 42109, 84218, 151097, 168436, 302194, 336872, 604388, 1208776, 2568649, 5137298, 10274596, 20549192]

約数ペア:

[(1, 20549192), (2, 10274596), (4, 5137298), (8, 2568649), (17, 1208776), (34, 604388), (61, 336872), (68, 302194), (122, 168436), (136, 151097), (244, 84218), (488, 42109), (1037, 19816), (2074, 9908), (2477, 8296), (4148, 4954)]