21930507

素因数分解:

$3^6\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:534

約数の個数: 28

約数和(自身を含む): 33445800

約数和(自身を除く): 11515293

約数列:

[1, 3, 9, 27, 67, 81, 201, 243, 449, 603, 729, 1347, 1809, 4041, 5427, 12123, 16281, 30083, 36369, 48843, 90249, 109107, 270747, 327321, 812241, 2436723, 7310169, 21930507]

約数ペア:

[(1, 21930507), (3, 7310169), (9, 2436723), (27, 812241), (67, 327321), (81, 270747), (201, 109107), (243, 90249), (449, 48843), (603, 36369), (729, 30083), (1347, 16281), (1809, 12123), (4041, 5427)]