21331167949

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{38371}}^1$

素因数の和:38581

約数の個数: 32

約数和(自身を含む): 27075283200

約数和(自身を除く): 5744115251

約数列:

[1, 7, 13, 41, 91, 149, 287, 533, 1043, 1937, 3731, 6109, 13559, 38371, 42763, 79417, 268597, 498823, 555919, 1573211, 3491761, 5717279, 11012477, 20451743, 40020953, 74324627, 143162201, 234408439, 520272389, 1640859073, 3047309707, 21331167949]

約数ペア:

[(1, 21331167949), (7, 3047309707), (13, 1640859073), (41, 520272389), (91, 234408439), (149, 143162201), (287, 74324627), (533, 40020953), (1043, 20451743), (1937, 11012477), (3731, 5717279), (6109, 3491761), (13559, 1573211), (38371, 555919), (42763, 498823), (79417, 268597)]