28578641

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16529}}^1$

素因数の和:16568

約数の個数: 16

約数和(自身を含む): 37027200

約数和(自身を除く): 8448559

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 16529, 115703, 214877, 314051, 1504139, 2198357, 4082663, 28578641]

約数ペア:

[(1, 28578641), (7, 4082663), (13, 2198357), (19, 1504139), (91, 314051), (133, 214877), (247, 115703), (1729, 16529)]