21542122

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17337878

約数列:

[1, 2, 7, 14, 23, 46, 149, 161, 298, 322, 449, 898, 1043, 2086, 3143, 3427, 6286, 6854, 10327, 20654, 23989, 47978, 66901, 72289, 133802, 144578, 468307, 936614, 1538723, 3077446, 10771061, 21542122]

約数ペア:

[(1, 21542122), (2, 10771061), (7, 3077446), (14, 1538723), (23, 936614), (46, 468307), (149, 144578), (161, 133802), (298, 72289), (322, 66901), (449, 47978), (898, 23989), (1043, 20654), (2086, 10327), (3143, 6854), (3427, 6286)]