19727396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 40172160

約数和(自身を除く): 20444764

約数列:

[1, 2, 4, 13, 19, 26, 38, 41, 52, 76, 82, 164, 247, 487, 494, 533, 779, 974, 988, 1066, 1558, 1948, 2132, 3116, 6331, 9253, 10127, 12662, 18506, 19967, 20254, 25324, 37012, 39934, 40508, 79868, 120289, 240578, 259571, 379373, 481156, 519142, 758746, 1038284, 1517492, 4931849, 9863698, 19727396]

約数ペア:

[(1, 19727396), (2, 9863698), (4, 4931849), (13, 1517492), (19, 1038284), (26, 758746), (38, 519142), (41, 481156), (52, 379373), (76, 259571), (82, 240578), (164, 120289), (247, 79868), (487, 40508), (494, 39934), (533, 37012), (779, 25324), (974, 20254), (988, 19967), (1066, 18506), (1558, 12662), (1948, 10127), (2132, 9253), (3116, 6331)]