19892187

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1049}}^1$

素因数の和:1112

約数の個数: 36

約数和(自身を含む): 34234200

約数和(自身を除く): 14342013

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 1049, 2107, 2709, 3147, 6321, 7343, 9441, 18963, 22029, 45107, 51401, 66087, 135321, 154203, 315749, 405963, 462609, 947247, 2210243, 2841741, 6630729, 19892187]

約数ペア:

[(1, 19892187), (3, 6630729), (7, 2841741), (9, 2210243), (21, 947247), (43, 462609), (49, 405963), (63, 315749), (129, 154203), (147, 135321), (301, 66087), (387, 51401), (441, 45107), (903, 22029), (1049, 18963), (2107, 9441), (2709, 7343), (3147, 6321)]