20848035

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 40158720

約数和(自身を除く): 19310685

約数列:

[1, 3, 5, 13, 15, 17, 19, 39, 51, 57, 65, 85, 95, 195, 221, 247, 255, 285, 323, 331, 663, 741, 969, 993, 1105, 1235, 1615, 1655, 3315, 3705, 4199, 4303, 4845, 4965, 5627, 6289, 12597, 12909, 16881, 18867, 20995, 21515, 28135, 31445, 62985, 64545, 73151, 81757, 84405, 94335, 106913, 219453, 245271, 320739, 365755, 408785, 534565, 1097265, 1226355, 1389869, 1603695, 4169607, 6949345, 20848035]

約数ペア:

[(1, 20848035), (3, 6949345), (5, 4169607), (13, 1603695), (15, 1389869), (17, 1226355), (19, 1097265), (39, 534565), (51, 408785), (57, 365755), (65, 320739), (85, 245271), (95, 219453), (195, 106913), (221, 94335), (247, 84405), (255, 81757), (285, 73151), (323, 64545), (331, 62985), (663, 31445), (741, 28135), (969, 21515), (993, 20995), (1105, 18867), (1235, 16881), (1615, 12909), (1655, 12597), (3315, 6289), (3705, 5627), (4199, 4965), (4303, 4845)]