21705496

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 41736240

約数和(自身を除く): 20030744

約数列:

[1, 2, 4, 8, 83, 97, 166, 194, 332, 337, 388, 664, 674, 776, 1348, 2696, 8051, 16102, 27971, 32204, 32689, 55942, 64408, 65378, 111884, 130756, 223768, 261512, 2713187, 5426374, 10852748, 21705496]

約数ペア:

[(1, 21705496), (2, 10852748), (4, 5426374), (8, 2713187), (83, 261512), (97, 223768), (166, 130756), (194, 111884), (332, 65378), (337, 64408), (388, 55942), (664, 32689), (674, 32204), (776, 27971), (1348, 16102), (2696, 8051)]