21631904

素因数分解:

$2^5\times 7^1\times {\mathrm{269}}^1\times {\mathrm{359}}^1$

素因数の和:645

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 27356896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 269, 359, 538, 718, 1076, 1436, 1883, 2152, 2513, 2872, 3766, 4304, 5026, 5744, 7532, 8608, 10052, 11488, 15064, 20104, 30128, 40208, 60256, 80416, 96571, 193142, 386284, 675997, 772568, 1351994, 1545136, 2703988, 3090272, 5407976, 10815952, 21631904]

約数ペア:

[(1, 21631904), (2, 10815952), (4, 5407976), (7, 3090272), (8, 2703988), (14, 1545136), (16, 1351994), (28, 772568), (32, 675997), (56, 386284), (112, 193142), (224, 96571), (269, 80416), (359, 60256), (538, 40208), (718, 30128), (1076, 20104), (1436, 15064), (1883, 11488), (2152, 10052), (2513, 8608), (2872, 7532), (3766, 5744), (4304, 5026)]