31940181

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 57832320

約数和(自身を除く): 25892139

約数列:

[1, 3, 7, 9, 13, 21, 39, 59, 63, 91, 117, 177, 273, 413, 531, 661, 767, 819, 1239, 1983, 2301, 3717, 4627, 5369, 5949, 6903, 8593, 13881, 16107, 25779, 38999, 41643, 48321, 60151, 77337, 116997, 180453, 272993, 350991, 506987, 541359, 818979, 1520961, 2456937, 3548909, 4562883, 10646727, 31940181]

約数ペア:

[(1, 31940181), (3, 10646727), (7, 4562883), (9, 3548909), (13, 2456937), (21, 1520961), (39, 818979), (59, 541359), (63, 506987), (91, 350991), (117, 272993), (177, 180453), (273, 116997), (413, 77337), (531, 60151), (661, 48321), (767, 41643), (819, 38999), (1239, 25779), (1983, 16107), (2301, 13881), (3717, 8593), (4627, 6903), (5369, 5949)]