20686076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4987}}^1$

素因数の和:5069

約数の個数: 24

約数和(自身を含む): 38966256

約数和(自身を除く): 18280180

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 4987, 9974, 19948, 84779, 169558, 304207, 339116, 608414, 1216828, 5171519, 10343038, 20686076]

約数ペア:

[(1, 20686076), (2, 10343038), (4, 5171519), (17, 1216828), (34, 608414), (61, 339116), (68, 304207), (122, 169558), (244, 84779), (1037, 19948), (2074, 9974), (4148, 4987)]