401427

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 646464

約数和(自身を除く): 245037

約数列:

[1, 3, 9, 13, 39, 47, 73, 117, 141, 219, 423, 611, 657, 949, 1833, 2847, 3431, 5499, 8541, 10293, 30879, 44603, 133809, 401427]

約数ペア:

[(1, 401427), (3, 133809), (9, 44603), (13, 30879), (39, 10293), (47, 8541), (73, 5499), (117, 3431), (141, 2847), (219, 1833), (423, 949), (611, 657)]