201909321

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{1487}}^1$

素因数の和:1650

約数の個数: 32

約数和(自身を含む): 308551680

約数和(自身を除く): 106642359

約数列:

[1, 3, 9, 27, 47, 107, 141, 321, 423, 963, 1269, 1487, 2889, 4461, 5029, 13383, 15087, 40149, 45261, 69889, 135783, 159109, 209667, 477327, 629001, 1431981, 1887003, 4295943, 7478123, 22434369, 67303107, 201909321]

約数ペア:

[(1, 201909321), (3, 67303107), (9, 22434369), (27, 7478123), (47, 4295943), (107, 1887003), (141, 1431981), (321, 629001), (423, 477327), (963, 209667), (1269, 159109), (1487, 135783), (2889, 69889), (4461, 45261), (5029, 40149), (13383, 15087)]