21158956

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{58129}}^1$

素因数の和:58153

約数の個数: 24

約数和(自身を含む): 45573920

約数和(自身を除く): 24414964

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 58129, 116258, 232516, 406903, 755677, 813806, 1511354, 1627612, 3022708, 5289739, 10579478, 21158956]

約数ペア:

[(1, 21158956), (2, 10579478), (4, 5289739), (7, 3022708), (13, 1627612), (14, 1511354), (26, 813806), (28, 755677), (52, 406903), (91, 232516), (182, 116258), (364, 58129)]