20154794223

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1723}}^1\times {\mathrm{3607}}^1$

素因数の和:5403

約数の個数: 32

約数和(自身を含む): 28662644736

約数和(自身を除く): 8507850513

約数列:

[1, 3, 23, 47, 69, 141, 1081, 1723, 3243, 3607, 5169, 10821, 39629, 80981, 82961, 118887, 169529, 242943, 248883, 508587, 1862563, 3899167, 5587689, 6214861, 11697501, 18644583, 142941803, 292098467, 428825409, 876295401, 6718264741, 20154794223]

約数ペア:

[(1, 20154794223), (3, 6718264741), (23, 876295401), (47, 428825409), (69, 292098467), (141, 142941803), (1081, 18644583), (1723, 11697501), (3243, 6214861), (3607, 5587689), (5169, 3899167), (10821, 1862563), (39629, 508587), (80981, 248883), (82961, 242943), (118887, 169529)]