20214271

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 27256320

約数和(自身を除く): 7042049

約数列:

[1, 7, 11, 19, 41, 77, 133, 209, 287, 337, 451, 779, 1463, 2359, 3157, 3707, 5453, 6403, 8569, 13817, 25949, 44821, 59983, 70433, 96719, 151987, 262523, 493031, 1063909, 1837661, 2887753, 20214271]

約数ペア:

[(1, 20214271), (7, 2887753), (11, 1837661), (19, 1063909), (41, 493031), (77, 262523), (133, 151987), (209, 96719), (287, 70433), (337, 59983), (451, 44821), (779, 25949), (1463, 13817), (2359, 8569), (3157, 6403), (3707, 5453)]