1289778903

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:789

約数の個数: 64

約数和(自身を含む): 2237414400

約数和(自身を除く): 947635497

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 331, 371, 389, 477, 993, 1113, 1167, 1431, 2317, 2723, 2979, 3339, 3501, 6951, 8169, 8937, 10017, 10503, 17543, 20617, 20853, 24507, 52629, 61851, 62559, 73521, 122801, 128759, 144319, 157887, 185553, 368403, 386277, 432957, 473661, 556659, 901313, 1105209, 1158831, 1298871, 2703939, 3315627, 3476493, 3896613, 6824227, 8111817, 20472681, 24335451, 47769589, 61418043, 143308767, 184254129, 429926301, 1289778903]

約数ペア:

[(1, 1289778903), (3, 429926301), (7, 184254129), (9, 143308767), (21, 61418043), (27, 47769589), (53, 24335451), (63, 20472681), (159, 8111817), (189, 6824227), (331, 3896613), (371, 3476493), (389, 3315627), (477, 2703939), (993, 1298871), (1113, 1158831), (1167, 1105209), (1431, 901313), (2317, 556659), (2723, 473661), (2979, 432957), (3339, 386277), (3501, 368403), (6951, 185553), (8169, 157887), (8937, 144319), (10017, 128759), (10503, 122801), (17543, 73521), (20617, 62559), (20853, 61851), (24507, 52629)]