21117276

素因数分解:

$2^2\times 3^2\times {\mathrm{431}}^1\times {\mathrm{1361}}^1$

素因数の和:1802

約数の個数: 36

約数和(自身を含む): 53542944

約数和(自身を除く): 32425668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 862, 1293, 1361, 1724, 2586, 2722, 3879, 4083, 5172, 5444, 7758, 8166, 12249, 15516, 16332, 24498, 48996, 586591, 1173182, 1759773, 2346364, 3519546, 5279319, 7039092, 10558638, 21117276]

約数ペア:

[(1, 21117276), (2, 10558638), (3, 7039092), (4, 5279319), (6, 3519546), (9, 2346364), (12, 1759773), (18, 1173182), (36, 586591), (431, 48996), (862, 24498), (1293, 16332), (1361, 15516), (1724, 12249), (2586, 8166), (2722, 7758), (3879, 5444), (4083, 5172)]