400724079

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{52859}}^1$

素因数の和:52907

約数の個数: 24

約数和(自身を含む): 644469120

約数和(自身を除く): 243745041

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 52859, 158577, 370013, 1004321, 1110039, 3012963, 7030247, 19082099, 21090741, 57246297, 133574693, 400724079]

約数ペア:

[(1, 400724079), (3, 133574693), (7, 57246297), (19, 21090741), (21, 19082099), (57, 7030247), (133, 3012963), (361, 1110039), (399, 1004321), (1083, 370013), (2527, 158577), (7581, 52859)]