254148921

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12703}}^1$

素因数の和:12747

約数の個数: 40

約数和(自身を含む): 430411520

約数和(自身を除く): 176262599

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 2223, 6669, 12703, 20007, 38109, 114327, 165139, 241357, 342981, 495417, 724071, 1028943, 1486251, 2172213, 3137641, 4458753, 6516639, 9412923, 13376259, 19549917, 28238769, 84716307, 254148921]

約数ペア:

[(1, 254148921), (3, 84716307), (9, 28238769), (13, 19549917), (19, 13376259), (27, 9412923), (39, 6516639), (57, 4458753), (81, 3137641), (117, 2172213), (171, 1486251), (247, 1028943), (351, 724071), (513, 495417), (741, 342981), (1053, 241357), (1539, 165139), (2223, 114327), (6669, 38109), (12703, 20007)]