2017781421

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 2961318528

約数和(自身を除く): 943537107

約数列:

[1, 3, 23, 37, 41, 69, 111, 123, 521, 851, 943, 1369, 1517, 1563, 2553, 2829, 4107, 4551, 11983, 19277, 21361, 31487, 34891, 35949, 56129, 57831, 64083, 94461, 104673, 168387, 443371, 491303, 713249, 790357, 1290967, 1330113, 1473909, 2139747, 2371071, 3872901, 16404727, 18178211, 29243209, 49214181, 54534633, 87729627, 672593807, 2017781421]

約数ペア:

[(1, 2017781421), (3, 672593807), (23, 87729627), (37, 54534633), (41, 49214181), (69, 29243209), (111, 18178211), (123, 16404727), (521, 3872901), (851, 2371071), (943, 2139747), (1369, 1473909), (1517, 1330113), (1563, 1290967), (2553, 790357), (2829, 713249), (4107, 491303), (4551, 443371), (11983, 168387), (19277, 104673), (21361, 94461), (31487, 64083), (34891, 57831), (35949, 56129)]