21963779

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 2421757

約数列:

[1, 17, 31, 71, 527, 587, 1207, 2201, 9979, 18197, 37417, 41677, 309349, 708509, 1291987, 21963779]

約数ペア:

[(1, 21963779), (17, 1291987), (31, 708509), (71, 309349), (527, 41677), (587, 37417), (1207, 18197), (2201, 9979)]