81937107

素因数分解:

$3^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2029}}^1$

素因数の和:2683

約数の個数: 24

約数和(自身を含む): 135539040

約数和(自身を除く): 53601933

約数列:

[1, 3, 7, 9, 21, 63, 641, 1923, 2029, 4487, 5769, 6087, 13461, 14203, 18261, 40383, 42609, 127827, 1300589, 3901767, 9104123, 11705301, 27312369, 81937107]

約数ペア:

[(1, 81937107), (3, 27312369), (7, 11705301), (9, 9104123), (21, 3901767), (63, 1300589), (641, 127827), (1923, 42609), (2029, 40383), (4487, 18261), (5769, 14203), (6087, 13461)]