19972496

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65699}}^1$

素因数の和:65726

約数の個数: 20

約数和(自身を含む): 40734000

約数和(自身を除く): 20761504

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65699, 131398, 262796, 525592, 1051184, 1248281, 2496562, 4993124, 9986248, 19972496]

約数ペア:

[(1, 19972496), (2, 9986248), (4, 4993124), (8, 2496562), (16, 1248281), (19, 1051184), (38, 525592), (76, 262796), (152, 131398), (304, 65699)]