216121231

素因数分解:

${\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 224985600

約数和(自身を除く): 8864369

約数列:

[1, 61, 71, 139, 359, 4331, 8479, 9869, 21899, 25489, 49901, 602009, 1554829, 3043961, 3542971, 216121231]

約数ペア:

[(1, 216121231), (61, 3542971), (71, 3043961), (139, 1554829), (359, 602009), (4331, 49901), (8479, 25489), (9869, 21899)]