21075184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101323}}^1$

素因数の和:101344

約数の個数: 20

約数和(自身を含む): 43974616

約数和(自身を除く): 22899432

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101323, 202646, 405292, 810584, 1317199, 1621168, 2634398, 5268796, 10537592, 21075184]

約数ペア:

[(1, 21075184), (2, 10537592), (4, 5268796), (8, 2634398), (13, 1621168), (16, 1317199), (26, 810584), (52, 405292), (104, 202646), (208, 101323)]