19906801201

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{78901}}^1$

素因数の和:79205

約数の個数: 24

約数和(自身を含む): 24465932160

約数和(自身を除く): 4559130959

約数列:

[1, 7, 19, 49, 133, 271, 931, 1897, 5149, 13279, 36043, 78901, 252301, 552307, 1499119, 3866149, 10493833, 21382171, 73456831, 149675197, 406261249, 1047726379, 2843828743, 19906801201]

約数ペア:

[(1, 19906801201), (7, 2843828743), (19, 1047726379), (49, 406261249), (133, 149675197), (271, 73456831), (931, 21382171), (1897, 10493833), (5149, 3866149), (13279, 1499119), (36043, 552307), (78901, 252301)]