2784327

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 4902912

約数和(自身を除く): 2118585

約数列:

[1, 3, 7, 13, 21, 31, 39, 47, 49, 91, 93, 141, 147, 217, 273, 329, 403, 611, 637, 651, 987, 1209, 1457, 1519, 1833, 1911, 2303, 2821, 4277, 4371, 4557, 6909, 8463, 10199, 12831, 18941, 19747, 29939, 30597, 56823, 59241, 71393, 89817, 132587, 214179, 397761, 928109, 2784327]

約数ペア:

[(1, 2784327), (3, 928109), (7, 397761), (13, 214179), (21, 132587), (31, 89817), (39, 71393), (47, 59241), (49, 56823), (91, 30597), (93, 29939), (141, 19747), (147, 18941), (217, 12831), (273, 10199), (329, 8463), (403, 6909), (611, 4557), (637, 4371), (651, 4277), (987, 2821), (1209, 2303), (1457, 1911), (1519, 1833)]