21090494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 35424000

約数和(自身を除く): 14333506

約数列:

[1, 2, 19, 23, 38, 46, 59, 118, 409, 437, 818, 874, 1121, 1357, 2242, 2714, 7771, 9407, 15542, 18814, 24131, 25783, 48262, 51566, 178733, 357466, 458489, 555013, 916978, 1110026, 10545247, 21090494]

約数ペア:

[(1, 21090494), (2, 10545247), (19, 1110026), (23, 916978), (38, 555013), (46, 458489), (59, 357466), (118, 178733), (409, 51566), (437, 48262), (818, 25783), (874, 24131), (1121, 18814), (1357, 15542), (2242, 9407), (2714, 7771)]