21072201

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:592

約数の個数: 16

約数和(自身を含む): 28549248

約数和(自身を除く): 7477047

約数列:

[1, 3, 151, 181, 257, 453, 543, 771, 27331, 38807, 46517, 81993, 116421, 139551, 7024067, 21072201]

約数ペア:

[(1, 21072201), (3, 7024067), (151, 139551), (181, 116421), (257, 81993), (453, 46517), (543, 38807), (771, 27331)]