21315327

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1627}}^1$

素因数の和:2038

約数の個数: 16

約数和(自身を含む): 31101312

約数和(自身を除く): 9785985

約数列:

[1, 3, 11, 33, 397, 1191, 1627, 4367, 4881, 13101, 17897, 53691, 645919, 1937757, 7105109, 21315327]

約数ペア:

[(1, 21315327), (3, 7105109), (11, 1937757), (33, 645919), (397, 53691), (1191, 17897), (1627, 13101), (4367, 4881)]