21602971

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 3193829

約数列:

[1, 13, 17, 221, 239, 409, 3107, 4063, 5317, 6953, 52819, 90389, 97751, 1270763, 1661767, 21602971]

約数ペア:

[(1, 21602971), (13, 1661767), (17, 1270763), (221, 97751), (239, 90389), (409, 52819), (3107, 6953), (4063, 5317)]