18921988995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3539}}^1\times {\mathrm{3917}}^1$

素因数の和:7484

約数の個数: 64

約数和(自身を含む): 37281807360

約数和(自身を除く): 18359818365

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 3539, 3917, 10617, 11751, 17695, 19585, 24773, 27419, 46007, 50921, 53085, 58755, 74319, 82257, 123865, 137095, 138021, 152763, 230035, 254605, 322049, 356447, 371595, 411285, 690105, 763815, 966147, 1069341, 1610245, 1782235, 4830735, 5346705, 13862263, 41586789, 69311315, 97035841, 180209419, 207933945, 291107523, 485179205, 540628257, 901047095, 1261465933, 1455537615, 2703141285, 3784397799, 6307329665, 18921988995]

約数ペア:

[(1, 18921988995), (3, 6307329665), (5, 3784397799), (7, 2703141285), (13, 1455537615), (15, 1261465933), (21, 901047095), (35, 540628257), (39, 485179205), (65, 291107523), (91, 207933945), (105, 180209419), (195, 97035841), (273, 69311315), (455, 41586789), (1365, 13862263), (3539, 5346705), (3917, 4830735), (10617, 1782235), (11751, 1610245), (17695, 1069341), (19585, 966147), (24773, 763815), (27419, 690105), (46007, 411285), (50921, 371595), (53085, 356447), (58755, 322049), (74319, 254605), (82257, 230035), (123865, 152763), (137095, 138021)]