21507116

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1489}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 39550560

約数和(自身を除く): 18043444

約数列:

[1, 2, 4, 23, 46, 92, 157, 314, 628, 1489, 2978, 3611, 5956, 7222, 14444, 34247, 68494, 136988, 233773, 467546, 935092, 5376779, 10753558, 21507116]

約数ペア:

[(1, 21507116), (2, 10753558), (4, 5376779), (23, 935092), (46, 467546), (92, 233773), (157, 136988), (314, 68494), (628, 34247), (1489, 14444), (2978, 7222), (3611, 5956)]