19744791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 29971968

約数和(自身を除く): 10227177

約数列:

[1, 3, 11, 33, 37, 103, 111, 157, 309, 407, 471, 1133, 1221, 1727, 3399, 3811, 5181, 5809, 11433, 16171, 17427, 41921, 48513, 63899, 125763, 177881, 191697, 533643, 598327, 1794981, 6581597, 19744791]

約数ペア:

[(1, 19744791), (3, 6581597), (11, 1794981), (33, 598327), (37, 533643), (103, 191697), (111, 177881), (157, 125763), (309, 63899), (407, 48513), (471, 41921), (1133, 17427), (1221, 16171), (1727, 11433), (3399, 5809), (3811, 5181)]