21213633

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{673}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 34508800

約数和(自身を除く): 13295167

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 673, 1501, 1659, 2019, 4503, 4711, 10507, 12787, 14133, 31521, 38361, 53167, 89509, 159501, 268527, 372169, 1010173, 1116507, 3030519, 7071211, 21213633]

約数ペア:

[(1, 21213633), (3, 7071211), (7, 3030519), (19, 1116507), (21, 1010173), (57, 372169), (79, 268527), (133, 159501), (237, 89509), (399, 53167), (553, 38361), (673, 31521), (1501, 14133), (1659, 12787), (2019, 10507), (4503, 4711)]