20953744

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3067}}^1$

素因数の和:3143

約数の個数: 40

約数和(自身を含む): 47173568

約数和(自身を除く): 26219824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3067, 3416, 6134, 6832, 12268, 21469, 24536, 42938, 49072, 85876, 171752, 187087, 343504, 374174, 748348, 1309609, 1496696, 2619218, 2993392, 5238436, 10476872, 20953744]

約数ペア:

[(1, 20953744), (2, 10476872), (4, 5238436), (7, 2993392), (8, 2619218), (14, 1496696), (16, 1309609), (28, 748348), (56, 374174), (61, 343504), (112, 187087), (122, 171752), (244, 85876), (427, 49072), (488, 42938), (854, 24536), (976, 21469), (1708, 12268), (3067, 6832), (3416, 6134)]