21663291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{2447}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 31256064

約数和(自身を除く): 9592773

約数列:

[1, 3, 13, 39, 227, 681, 2447, 2951, 7341, 8853, 31811, 95433, 555469, 1666407, 7221097, 21663291]

約数ペア:

[(1, 21663291), (3, 7221097), (13, 1666407), (39, 555469), (227, 95433), (681, 31811), (2447, 8853), (2951, 7341)]