21421642319

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{711517}}^1$

素因数の和:711575

約数の個数: 32

約数和(自身を含む): 29508074496

約数和(自身を除く): 8086432177

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 1309, 1771, 2737, 4301, 30107, 711517, 4980619, 7826687, 12095789, 16364891, 54786809, 84670523, 114554237, 133053679, 180013801, 278203147, 931375753, 1260096607, 1947422029, 3060234617, 21421642319]

約数ペア:

[(1, 21421642319), (7, 3060234617), (11, 1947422029), (17, 1260096607), (23, 931375753), (77, 278203147), (119, 180013801), (161, 133053679), (187, 114554237), (253, 84670523), (391, 54786809), (1309, 16364891), (1771, 12095789), (2737, 7826687), (4301, 4980619), (30107, 711517)]