21538548

素因数分解:

$2^2\times 3^5\times {\mathrm{22159}}^1$

素因数の和:22178

約数の個数: 36

約数和(自身を含む): 56463680

約数和(自身を除く): 34925132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972, 22159, 44318, 66477, 88636, 132954, 199431, 265908, 398862, 598293, 797724, 1196586, 1794879, 2393172, 3589758, 5384637, 7179516, 10769274, 21538548]

約数ペア:

[(1, 21538548), (2, 10769274), (3, 7179516), (4, 5384637), (6, 3589758), (9, 2393172), (12, 1794879), (18, 1196586), (27, 797724), (36, 598293), (54, 398862), (81, 265908), (108, 199431), (162, 132954), (243, 88636), (324, 66477), (486, 44318), (972, 22159)]