20907904

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8597}}^1$

素因数の和:8630

約数の個数: 32

約数和(自身を含む): 43849800

約数和(自身を除く): 22941896

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8597, 17194, 34388, 68776, 137552, 163343, 275104, 326686, 550208, 653372, 1100416, 1306744, 2613488, 5226976, 10453952, 20907904]

約数ペア:

[(1, 20907904), (2, 10453952), (4, 5226976), (8, 2613488), (16, 1306744), (19, 1100416), (32, 653372), (38, 550208), (64, 326686), (76, 275104), (128, 163343), (152, 137552), (304, 68776), (608, 34388), (1216, 17194), (2432, 8597)]