21348328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1987}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 21592472

約数列:

[1, 2, 4, 8, 17, 34, 68, 79, 136, 158, 316, 632, 1343, 1987, 2686, 3974, 5372, 7948, 10744, 15896, 33779, 67558, 135116, 156973, 270232, 313946, 627892, 1255784, 2668541, 5337082, 10674164, 21348328]

約数ペア:

[(1, 21348328), (2, 10674164), (4, 5337082), (8, 2668541), (17, 1255784), (34, 627892), (68, 313946), (79, 270232), (136, 156973), (158, 135116), (316, 67558), (632, 33779), (1343, 15896), (1987, 10744), (2686, 7948), (3974, 5372)]