21553917

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{93307}}^1$

素因数の和:93328

約数の個数: 16

約数和(自身を含む): 35830272

約数和(自身を除く): 14276355

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 93307, 279921, 653149, 1026377, 1959447, 3079131, 7184639, 21553917]

約数ペア:

[(1, 21553917), (3, 7184639), (7, 3079131), (11, 1959447), (21, 1026377), (33, 653149), (77, 279921), (231, 93307)]