19997094

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:122

約数の個数: 64

約数和(自身を含む): 45581760

約数和(自身を除く): 25584666

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 41, 74, 78, 82, 111, 123, 169, 222, 246, 338, 481, 507, 533, 962, 1014, 1066, 1443, 1517, 1599, 2197, 2886, 3034, 3198, 4394, 4551, 6253, 6591, 6929, 9102, 12506, 13182, 13858, 18759, 19721, 20787, 37518, 39442, 41574, 59163, 81289, 90077, 118326, 162578, 180154, 243867, 256373, 270231, 487734, 512746, 540462, 769119, 1538238, 3332849, 6665698, 9998547, 19997094]

約数ペア:

[(1, 19997094), (2, 9998547), (3, 6665698), (6, 3332849), (13, 1538238), (26, 769119), (37, 540462), (39, 512746), (41, 487734), (74, 270231), (78, 256373), (82, 243867), (111, 180154), (123, 162578), (169, 118326), (222, 90077), (246, 81289), (338, 59163), (481, 41574), (507, 39442), (533, 37518), (962, 20787), (1014, 19721), (1066, 18759), (1443, 13858), (1517, 13182), (1599, 12506), (2197, 9102), (2886, 6929), (3034, 6591), (3198, 6253), (4394, 4551)]