21092480

素因数分解:

$2^7\times 5^1\times {\mathrm{32957}}^1$

素因数の和:32976

約数の個数: 32

約数和(自身を含む): 50425740

約数和(自身を除く): 29333260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32957, 65914, 131828, 164785, 263656, 329570, 527312, 659140, 1054624, 1318280, 2109248, 2636560, 4218496, 5273120, 10546240, 21092480]

約数ペア:

[(1, 21092480), (2, 10546240), (4, 5273120), (5, 4218496), (8, 2636560), (10, 2109248), (16, 1318280), (20, 1054624), (32, 659140), (40, 527312), (64, 329570), (80, 263656), (128, 164785), (160, 131828), (320, 65914), (640, 32957)]