21430784

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2203}}^1$

素因数の和:2240

約数の個数: 40

約数和(自身を含む): 45093840

約数和(自身を除く): 23663056

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2203, 2432, 4406, 4864, 8812, 9728, 17624, 35248, 41857, 70496, 83714, 140992, 167428, 281984, 334856, 563968, 669712, 1127936, 1339424, 2678848, 5357696, 10715392, 21430784]

約数ペア:

[(1, 21430784), (2, 10715392), (4, 5357696), (8, 2678848), (16, 1339424), (19, 1127936), (32, 669712), (38, 563968), (64, 334856), (76, 281984), (128, 167428), (152, 140992), (256, 83714), (304, 70496), (512, 41857), (608, 35248), (1216, 17624), (2203, 9728), (2432, 8812), (4406, 4864)]