19699986

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 40255488

約数和(自身を除く): 20555502

約数列:

[1, 2, 3, 6, 103, 127, 206, 251, 254, 309, 381, 502, 618, 753, 762, 1506, 13081, 25853, 26162, 31877, 39243, 51706, 63754, 77559, 78486, 95631, 155118, 191262, 3283331, 6566662, 9849993, 19699986]

約数ペア:

[(1, 19699986), (2, 9849993), (3, 6566662), (6, 3283331), (103, 191262), (127, 155118), (206, 95631), (251, 78486), (254, 77559), (309, 63754), (381, 51706), (502, 39243), (618, 31877), (753, 26162), (762, 25853), (1506, 13081)]