19797141

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 32800768

約数和(自身を除く): 13003627

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 571, 889, 1651, 1713, 2667, 3997, 4953, 7423, 11557, 11991, 22269, 34671, 51961, 72517, 155883, 217551, 507619, 942721, 1522857, 2828163, 6599047, 19797141]

約数ペア:

[(1, 19797141), (3, 6599047), (7, 2828163), (13, 1522857), (21, 942721), (39, 507619), (91, 217551), (127, 155883), (273, 72517), (381, 51961), (571, 34671), (889, 22269), (1651, 11991), (1713, 11557), (2667, 7423), (3997, 4953)]