20992801984

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4259903}}^1$

素因数の和:4259933

約数の個数: 56

約数和(自身を含む): 51936749568

約数和(自身を除く): 30943947584

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 154, 176, 224, 308, 352, 448, 616, 704, 1232, 2464, 4928, 4259903, 8519806, 17039612, 29819321, 34079224, 46858933, 59638642, 68158448, 93717866, 119277284, 136316896, 187435732, 238554568, 272633792, 328012531, 374871464, 477109136, 656025062, 749742928, 954218272, 1312050124, 1499485856, 1908436544, 2624100248, 2998971712, 5248200496, 10496400992, 20992801984]

約数ペア:

[(1, 20992801984), (2, 10496400992), (4, 5248200496), (7, 2998971712), (8, 2624100248), (11, 1908436544), (14, 1499485856), (16, 1312050124), (22, 954218272), (28, 749742928), (32, 656025062), (44, 477109136), (56, 374871464), (64, 328012531), (77, 272633792), (88, 238554568), (112, 187435732), (154, 136316896), (176, 119277284), (224, 93717866), (308, 68158448), (352, 59638642), (448, 46858933), (616, 34079224), (704, 29819321), (1232, 17039612), (2464, 8519806), (4928, 4259903)]