21497718

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{325723}}^1$

素因数の和:325739

約数の個数: 16

約数和(自身を含む): 46904256

約数和(自身を除く): 25406538

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 325723, 651446, 977169, 1954338, 3582953, 7165906, 10748859, 21497718]

約数ペア:

[(1, 21497718), (2, 10748859), (3, 7165906), (6, 3582953), (11, 1954338), (22, 977169), (33, 651446), (66, 325723)]