20177829

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1873}}^1$

素因数の和:1911

約数の個数: 40

約数和(自身を含む): 36280640

約数和(自身を除く): 16102811

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 1873, 3591, 5619, 10773, 13111, 16857, 35587, 39333, 50571, 106761, 117999, 151713, 249109, 320283, 353997, 747327, 960849, 1061991, 2241981, 2882547, 6725943, 20177829]

約数ペア:

[(1, 20177829), (3, 6725943), (7, 2882547), (9, 2241981), (19, 1061991), (21, 960849), (27, 747327), (57, 353997), (63, 320283), (81, 249109), (133, 151713), (171, 117999), (189, 106761), (399, 50571), (513, 39333), (567, 35587), (1197, 16857), (1539, 13111), (1873, 10773), (3591, 5619)]