20711696

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21221}}^1$

素因数の和:21290

約数の個数: 20

約数和(自身を含む): 40788684

約数和(自身を除く): 20076988

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21221, 42442, 84884, 169768, 339536, 1294481, 2588962, 5177924, 10355848, 20711696]

約数ペア:

[(1, 20711696), (2, 10355848), (4, 5177924), (8, 2588962), (16, 1294481), (61, 339536), (122, 169768), (244, 84884), (488, 42442), (976, 21221)]