21138702

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11783}}^1$

素因数の和:11824

約数の個数: 32

約数和(自身を含む): 47513088

約数和(自身を除く): 26374386

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11783, 23566, 35349, 70698, 153179, 271009, 306358, 459537, 542018, 813027, 919074, 1626054, 3523117, 7046234, 10569351, 21138702]

約数ペア:

[(1, 21138702), (2, 10569351), (3, 7046234), (6, 3523117), (13, 1626054), (23, 919074), (26, 813027), (39, 542018), (46, 459537), (69, 306358), (78, 271009), (138, 153179), (299, 70698), (598, 35349), (897, 23566), (1794, 11783)]