25720317

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7703}}^1$

素因数の和:7769

約数の個数: 24

約数和(自身を含む): 43265664

約数和(自身を除く): 17545347

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 7703, 23109, 53921, 69327, 161763, 408259, 485289, 1224777, 2857813, 3674331, 8573439, 25720317]

約数ペア:

[(1, 25720317), (3, 8573439), (7, 3674331), (9, 2857813), (21, 1224777), (53, 485289), (63, 408259), (159, 161763), (371, 69327), (477, 53921), (1113, 23109), (3339, 7703)]