51021009

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 85123584

約数和(自身を除く): 34102575

約数列:

[1, 3, 9, 13, 27, 31, 39, 81, 93, 117, 243, 279, 351, 403, 521, 837, 1053, 1209, 1563, 2511, 3159, 3627, 4689, 6773, 7533, 10881, 14067, 16151, 20319, 32643, 42201, 48453, 60957, 97929, 126603, 145359, 182871, 209963, 436077, 548613, 629889, 1308231, 1645839, 1889667, 3924693, 5669001, 17007003, 51021009]

約数ペア:

[(1, 51021009), (3, 17007003), (9, 5669001), (13, 3924693), (27, 1889667), (31, 1645839), (39, 1308231), (81, 629889), (93, 548613), (117, 436077), (243, 209963), (279, 182871), (351, 145359), (403, 126603), (521, 97929), (837, 60957), (1053, 48453), (1209, 42201), (1563, 32643), (2511, 20319), (3159, 16151), (3627, 14067), (4689, 10881), (6773, 7533)]