21179584

素因数分解:

$2^6\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:221

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 22711616

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 71, 79, 118, 142, 158, 236, 284, 316, 472, 568, 632, 944, 1136, 1264, 1888, 2272, 2528, 3776, 4189, 4544, 4661, 5056, 5609, 8378, 9322, 11218, 16756, 18644, 22436, 33512, 37288, 44872, 67024, 74576, 89744, 134048, 149152, 179488, 268096, 298304, 330931, 358976, 661862, 1323724, 2647448, 5294896, 10589792, 21179584]

約数ペア:

[(1, 21179584), (2, 10589792), (4, 5294896), (8, 2647448), (16, 1323724), (32, 661862), (59, 358976), (64, 330931), (71, 298304), (79, 268096), (118, 179488), (142, 149152), (158, 134048), (236, 89744), (284, 74576), (316, 67024), (472, 44872), (568, 37288), (632, 33512), (944, 22436), (1136, 18644), (1264, 16756), (1888, 11218), (2272, 9322), (2528, 8378), (3776, 5609), (4189, 5056), (4544, 4661)]