20512521471

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{2039}}^1$

素因数の和:2296

約数の個数: 64

約数和(自身を含む): 31190261760

約数和(自身を除く): 10677740289

約数列:

[1, 3, 13, 31, 39, 53, 93, 157, 159, 403, 471, 689, 1209, 1643, 2039, 2041, 2067, 4867, 4929, 6117, 6123, 8321, 14601, 21359, 24963, 26507, 63209, 63271, 64077, 79521, 108067, 108173, 189627, 189813, 257951, 320123, 324201, 324519, 773853, 821717, 960369, 1404871, 2465151, 3350077, 3353363, 4161599, 4214613, 9923813, 10050231, 10060089, 12484797, 16966519, 29771439, 43551001, 50899557, 129009569, 130653003, 220564747, 387028707, 525962089, 661694241, 1577886267, 6837507157, 20512521471]

約数ペア:

[(1, 20512521471), (3, 6837507157), (13, 1577886267), (31, 661694241), (39, 525962089), (53, 387028707), (93, 220564747), (157, 130653003), (159, 129009569), (403, 50899557), (471, 43551001), (689, 29771439), (1209, 16966519), (1643, 12484797), (2039, 10060089), (2041, 10050231), (2067, 9923813), (4867, 4214613), (4929, 4161599), (6117, 3353363), (6123, 3350077), (8321, 2465151), (14601, 1404871), (21359, 960369), (24963, 821717), (26507, 773853), (63209, 324519), (63271, 324201), (64077, 320123), (79521, 257951), (108067, 189813), (108173, 189627)]