20828738

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 36989568

約数和(自身を除く): 16160830

約数列:

[1, 2, 7, 14, 41, 82, 131, 262, 277, 287, 554, 574, 917, 1834, 1939, 3878, 5371, 10742, 11357, 22714, 36287, 37597, 72574, 75194, 79499, 158998, 254009, 508018, 1487767, 2975534, 10414369, 20828738]

約数ペア:

[(1, 20828738), (2, 10414369), (7, 2975534), (14, 1487767), (41, 508018), (82, 254009), (131, 158998), (262, 79499), (277, 75194), (287, 72574), (554, 37597), (574, 36287), (917, 22714), (1834, 11357), (1939, 10742), (3878, 5371)]