21286859

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{569}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 3337141

約数列:

[1, 11, 19, 179, 209, 569, 1969, 3401, 6259, 10811, 37411, 101851, 118921, 1120361, 1935169, 21286859]

約数ペア:

[(1, 21286859), (11, 1935169), (19, 1120361), (179, 118921), (209, 101851), (569, 37411), (1969, 10811), (3401, 6259)]