21487389

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{557}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 14510307

約数列:

[1, 3, 7, 11, 21, 33, 77, 167, 231, 501, 557, 1169, 1671, 1837, 3507, 3899, 5511, 6127, 11697, 12859, 18381, 38577, 42889, 93019, 128667, 279057, 651133, 1023209, 1953399, 3069627, 7162463, 21487389]

約数ペア:

[(1, 21487389), (3, 7162463), (7, 3069627), (11, 1953399), (21, 1023209), (33, 651133), (77, 279057), (167, 128667), (231, 93019), (501, 42889), (557, 38577), (1169, 18381), (1671, 12859), (1837, 11697), (3507, 6127), (3899, 5511)]