21509164

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1949}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 39312000

約数和(自身を除く): 17802836

約数列:

[1, 2, 4, 31, 62, 89, 124, 178, 356, 1949, 2759, 3898, 5518, 7796, 11036, 60419, 120838, 173461, 241676, 346922, 693844, 5377291, 10754582, 21509164]

約数ペア:

[(1, 21509164), (2, 10754582), (4, 5377291), (31, 693844), (62, 346922), (89, 241676), (124, 173461), (178, 120838), (356, 60419), (1949, 11036), (2759, 7796), (3898, 5518)]