21409408

素因数分解:

$2^7\times {\mathrm{167261}}^1$

素因数の和:167275

約数の個数: 16

約数和(自身を含む): 42651810

約数和(自身を除く): 21242402

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167261, 334522, 669044, 1338088, 2676176, 5352352, 10704704, 21409408]

約数ペア:

[(1, 21409408), (2, 10704704), (4, 5352352), (8, 2676176), (16, 1338088), (32, 669044), (64, 334522), (128, 167261)]