21429765

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7559}}^1$

素因数の和:7583

約数の個数: 40

約数和(自身を含む): 43908480

約数和(自身を除く): 22478715

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7559, 22677, 37795, 52913, 68031, 113385, 158739, 204093, 264565, 340155, 476217, 612279, 793695, 1020465, 1428651, 2381085, 3061395, 4285953, 7143255, 21429765]

約数ペア:

[(1, 21429765), (3, 7143255), (5, 4285953), (7, 3061395), (9, 2381085), (15, 1428651), (21, 1020465), (27, 793695), (35, 612279), (45, 476217), (63, 340155), (81, 264565), (105, 204093), (135, 158739), (189, 113385), (315, 68031), (405, 52913), (567, 37795), (945, 22677), (2835, 7559)]