20875644

素因数分解:

$2^2\times 3^6\times {\mathrm{7159}}^1$

素因数の和:7181

約数の個数: 42

約数和(自身を含む): 54781160

約数和(自身を除く): 33905516

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7159, 14318, 21477, 28636, 42954, 64431, 85908, 128862, 193293, 257724, 386586, 579879, 773172, 1159758, 1739637, 2319516, 3479274, 5218911, 6958548, 10437822, 20875644]

約数ペア:

[(1, 20875644), (2, 10437822), (3, 6958548), (4, 5218911), (6, 3479274), (9, 2319516), (12, 1739637), (18, 1159758), (27, 773172), (36, 579879), (54, 386586), (81, 257724), (108, 193293), (162, 128862), (243, 85908), (324, 64431), (486, 42954), (729, 28636), (972, 21477), (1458, 14318), (2916, 7159)]