18219219

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 24775968

約数和(自身を除く): 6556749

約数列:

[1, 3, 97, 137, 291, 411, 457, 1371, 13289, 39867, 44329, 62609, 132987, 187827, 6073073, 18219219]

約数ペア:

[(1, 18219219), (3, 6073073), (97, 187827), (137, 132987), (291, 62609), (411, 44329), (457, 39867), (1371, 13289)]