219876489

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{65851}}^1$

素因数の和:65917

約数の個数: 24

約数和(自身を含む): 369824832

約数和(自身を除く): 149948343

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 65851, 197553, 460957, 592659, 1382871, 3490103, 4148613, 10470309, 24430721, 31410927, 73292163, 219876489]

約数ペア:

[(1, 219876489), (3, 73292163), (7, 31410927), (9, 24430721), (21, 10470309), (53, 4148613), (63, 3490103), (159, 1382871), (371, 592659), (477, 460957), (1113, 197553), (3339, 65851)]