28161931

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{653}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 33087168

約数和(自身を除く): 4925237

約数列:

[1, 7, 61, 101, 427, 653, 707, 4571, 6161, 39833, 43127, 65953, 278831, 461671, 4023133, 28161931]

約数ペア:

[(1, 28161931), (7, 4023133), (61, 461671), (101, 278831), (427, 65953), (653, 43127), (707, 39833), (4571, 6161)]