21243064

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8221}}^1$

素因数の和:8263

約数の個数: 32

約数和(自身を含む): 44398800

約数和(自身を除く): 23155736

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8221, 16442, 32884, 65768, 139757, 156199, 279514, 312398, 559028, 624796, 1118056, 1249592, 2655383, 5310766, 10621532, 21243064]

約数ペア:

[(1, 21243064), (2, 10621532), (4, 5310766), (8, 2655383), (17, 1249592), (19, 1118056), (34, 624796), (38, 559028), (68, 312398), (76, 279514), (136, 156199), (152, 139757), (323, 65768), (646, 32884), (1292, 16442), (2584, 8221)]