21260164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3541}}^1$

素因数の和:3643

約数の個数: 24

約数和(自身を含む): 39670400

約数和(自身を除く): 18410236

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3541, 6004, 7082, 14164, 67279, 134558, 269116, 279739, 559478, 1118956, 5315041, 10630082, 21260164]

約数ペア:

[(1, 21260164), (2, 10630082), (4, 5315041), (19, 1118956), (38, 559478), (76, 279739), (79, 269116), (158, 134558), (316, 67279), (1501, 14164), (3002, 7082), (3541, 6004)]