631389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 24

約数和(自身を含む): 987552

約数和(自身を除く): 356163

約数列:

[1, 3, 11, 19, 33, 53, 57, 159, 209, 361, 583, 627, 1007, 1083, 1749, 3021, 3971, 11077, 11913, 19133, 33231, 57399, 210463, 631389]

約数ペア:

[(1, 631389), (3, 210463), (11, 57399), (19, 33231), (33, 19133), (53, 11913), (57, 11077), (159, 3971), (209, 3021), (361, 1749), (583, 1083), (627, 1007)]