21870057

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{5059}}^1$

素因数の和:5204

約数の個数: 16

約数和(自身を含む): 32060160

約数和(自身を除く): 10190103

約数列:

[1, 3, 11, 33, 131, 393, 1441, 4323, 5059, 15177, 55649, 166947, 662729, 1988187, 7290019, 21870057]

約数ペア:

[(1, 21870057), (3, 7290019), (11, 1988187), (33, 662729), (131, 166947), (393, 55649), (1441, 15177), (4323, 5059)]