21012519

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{607}}^1\times {\mathrm{1049}}^1$

素因数の和:1670

約数の個数: 16

約数和(自身を含む): 30643200

約数和(自身を除く): 9630681

約数列:

[1, 3, 11, 33, 607, 1049, 1821, 3147, 6677, 11539, 20031, 34617, 636743, 1910229, 7004173, 21012519]

約数ペア:

[(1, 21012519), (3, 7004173), (11, 1910229), (33, 636743), (607, 34617), (1049, 20031), (1821, 11539), (3147, 6677)]