21367928

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86161}}^1$

素因数の和:86198

約数の個数: 16

約数和(自身を含む): 41357760

約数和(自身を除く): 19989832

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86161, 172322, 344644, 689288, 2670991, 5341982, 10683964, 21367928]

約数ペア:

[(1, 21367928), (2, 10683964), (4, 5341982), (8, 2670991), (31, 689288), (62, 344644), (124, 172322), (248, 86161)]