1389591

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 2454192

約数和(自身を除く): 1064601

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 137, 147, 161, 207, 411, 441, 483, 959, 1127, 1233, 1449, 2877, 3151, 3381, 6713, 8631, 9453, 10143, 20139, 22057, 28359, 60417, 66171, 154399, 198513, 463197, 1389591]

約数ペア:

[(1, 1389591), (3, 463197), (7, 198513), (9, 154399), (21, 66171), (23, 60417), (49, 28359), (63, 22057), (69, 20139), (137, 10143), (147, 9453), (161, 8631), (207, 6713), (411, 3381), (441, 3151), (483, 2877), (959, 1449), (1127, 1233)]