21463161

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 30436224

約数和(自身を除く): 8973063

約数列:

[1, 3, 29, 47, 87, 141, 181, 543, 841, 1363, 2523, 4089, 5249, 8507, 15747, 25521, 39527, 118581, 152221, 246703, 456663, 740109, 7154387, 21463161]

約数ペア:

[(1, 21463161), (3, 7154387), (29, 740109), (47, 456663), (87, 246703), (141, 152221), (181, 118581), (543, 39527), (841, 25521), (1363, 15747), (2523, 8507), (4089, 5249)]