440271

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 24

約数和(自身を含む): 707616

約数和(自身を除く): 267345

約数列:

[1, 3, 9, 13, 39, 53, 71, 117, 159, 213, 477, 639, 689, 923, 2067, 2769, 3763, 6201, 8307, 11289, 33867, 48919, 146757, 440271]

約数ペア:

[(1, 440271), (3, 146757), (9, 48919), (13, 33867), (39, 11289), (53, 8307), (71, 6201), (117, 3763), (159, 2769), (213, 2067), (477, 923), (639, 689)]