21011036285

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{860579}}^1$

素因数の和:860860

約数の個数: 16

約数和(自身を含む): 26643556800

約数和(自身を除く): 5632520515

約数列:

[1, 5, 19, 95, 257, 1285, 4883, 24415, 860579, 4302895, 16351001, 81755005, 221168803, 1105844015, 4202207257, 21011036285]

約数ペア:

[(1, 21011036285), (5, 4202207257), (19, 1105844015), (95, 221168803), (257, 81755005), (1285, 16351001), (4883, 4302895), (24415, 860579)]