21697624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208631}}^1$

素因数の和:208650

約数の個数: 16

約数和(自身を含む): 43812720

約数和(自身を除く): 22115096

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208631, 417262, 834524, 1669048, 2712203, 5424406, 10848812, 21697624]

約数ペア:

[(1, 21697624), (2, 10848812), (4, 5424406), (8, 2712203), (13, 1669048), (26, 834524), (52, 417262), (104, 208631)]