20521178

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{827}}^1$

素因数の和:1501

約数の個数: 16

約数和(自身を含む): 32490720

約数和(自身を除く): 11969542

約数列:

[1, 2, 19, 38, 653, 827, 1306, 1654, 12407, 15713, 24814, 31426, 540031, 1080062, 10260589, 20521178]

約数ペア:

[(1, 20521178), (2, 10260589), (19, 1080062), (38, 540031), (653, 31426), (827, 24814), (1306, 15713), (1654, 12407)]