20778112

素因数分解:

$2^7\times {\mathrm{271}}^1\times {\mathrm{599}}^1$

素因数の和:884

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 20837888

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 271, 542, 599, 1084, 1198, 2168, 2396, 4336, 4792, 8672, 9584, 17344, 19168, 34688, 38336, 76672, 162329, 324658, 649316, 1298632, 2597264, 5194528, 10389056, 20778112]

約数ペア:

[(1, 20778112), (2, 10389056), (4, 5194528), (8, 2597264), (16, 1298632), (32, 649316), (64, 324658), (128, 162329), (271, 76672), (542, 38336), (599, 34688), (1084, 19168), (1198, 17344), (2168, 9584), (2396, 8672), (4336, 4792)]