21000317744

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3073817}}^1$

素因数の和:3073893

約数の個数: 40

約数和(自身を含む): 47263025568

約数和(自身を除く): 26262707824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3416, 6832, 3073817, 6147634, 12295268, 21516719, 24590536, 43033438, 49181072, 86066876, 172133752, 187502837, 344267504, 375005674, 750011348, 1312519859, 1500022696, 2625039718, 3000045392, 5250079436, 10500158872, 21000317744]

約数ペア:

[(1, 21000317744), (2, 10500158872), (4, 5250079436), (7, 3000045392), (8, 2625039718), (14, 1500022696), (16, 1312519859), (28, 750011348), (56, 375005674), (61, 344267504), (112, 187502837), (122, 172133752), (244, 86066876), (427, 49181072), (488, 43033438), (854, 24590536), (976, 21516719), (1708, 12295268), (3416, 6147634), (6832, 3073817)]