20181272937

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{277}}^1\times {\mathrm{4547}}^1$

素因数の和:4950

約数の個数: 48

約数和(自身を含む): 31709747520

約数和(自身を除く): 11528474583

約数列:

[1, 3, 7, 21, 49, 109, 147, 277, 327, 763, 831, 1939, 2289, 4547, 5341, 5817, 13573, 13641, 16023, 30193, 31829, 40719, 90579, 95487, 211351, 222803, 495623, 634053, 668409, 1259519, 1479457, 1486869, 3469361, 3778557, 4438371, 8816633, 10408083, 24285527, 26449899, 61716431, 72856581, 137287571, 185149293, 411862713, 961012997, 2883038991, 6727090979, 20181272937]

約数ペア:

[(1, 20181272937), (3, 6727090979), (7, 2883038991), (21, 961012997), (49, 411862713), (109, 185149293), (147, 137287571), (277, 72856581), (327, 61716431), (763, 26449899), (831, 24285527), (1939, 10408083), (2289, 8816633), (4547, 4438371), (5341, 3778557), (5817, 3469361), (13573, 1486869), (13641, 1479457), (16023, 1259519), (30193, 668409), (31829, 634053), (40719, 495623), (90579, 222803), (95487, 211351)]