20318186

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 15606934

約数列:

[1, 2, 7, 14, 53, 106, 139, 197, 278, 371, 394, 742, 973, 1379, 1946, 2758, 7367, 10441, 14734, 20882, 27383, 51569, 54766, 73087, 103138, 146174, 191681, 383362, 1451299, 2902598, 10159093, 20318186]

約数ペア:

[(1, 20318186), (2, 10159093), (7, 2902598), (14, 1451299), (53, 383362), (106, 191681), (139, 146174), (197, 103138), (278, 73087), (371, 54766), (394, 51569), (742, 27383), (973, 20882), (1379, 14734), (1946, 10441), (2758, 7367)]