17780917

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4357}}^1$

素因数の和:4428

約数の個数: 16

約数和(自身を含む): 22591872

約数和(自身を除く): 4810955

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 4357, 30499, 47927, 230921, 335489, 1616447, 2540131, 17780917]

約数ペア:

[(1, 17780917), (7, 2540131), (11, 1616447), (53, 335489), (77, 230921), (371, 47927), (583, 30499), (4081, 4357)]