21534464

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 50184288

約数和(自身を除く): 28649824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 197, 224, 244, 256, 394, 427, 448, 488, 788, 854, 896, 976, 1379, 1576, 1708, 1792, 1952, 2758, 3152, 3416, 3904, 5516, 6304, 6832, 7808, 11032, 12017, 12608, 13664, 15616, 22064, 24034, 25216, 27328, 44128, 48068, 50432, 54656, 84119, 88256, 96136, 109312, 168238, 176512, 192272, 336476, 353024, 384544, 672952, 769088, 1345904, 1538176, 2691808, 3076352, 5383616, 10767232, 21534464]

約数ペア:

[(1, 21534464), (2, 10767232), (4, 5383616), (7, 3076352), (8, 2691808), (14, 1538176), (16, 1345904), (28, 769088), (32, 672952), (56, 384544), (61, 353024), (64, 336476), (112, 192272), (122, 176512), (128, 168238), (197, 109312), (224, 96136), (244, 88256), (256, 84119), (394, 54656), (427, 50432), (448, 48068), (488, 44128), (788, 27328), (854, 25216), (896, 24034), (976, 22064), (1379, 15616), (1576, 13664), (1708, 12608), (1792, 12017), (1952, 11032), (2758, 7808), (3152, 6832), (3416, 6304), (3904, 5516)]