19937652

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3343}}^1$

素因数の和:3428

約数の個数: 48

約数和(自身を含む): 53932032

約数和(自身を除く): 33994380

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3343, 5964, 6686, 10029, 13372, 20058, 23401, 40116, 46802, 70203, 93604, 140406, 237353, 280812, 474706, 712059, 949412, 1424118, 1661471, 2848236, 3322942, 4984413, 6645884, 9968826, 19937652]

約数ペア:

[(1, 19937652), (2, 9968826), (3, 6645884), (4, 4984413), (6, 3322942), (7, 2848236), (12, 1661471), (14, 1424118), (21, 949412), (28, 712059), (42, 474706), (71, 280812), (84, 237353), (142, 140406), (213, 93604), (284, 70203), (426, 46802), (497, 40116), (852, 23401), (994, 20058), (1491, 13372), (1988, 10029), (2982, 6686), (3343, 5964)]