21319808

素因数分解:

$2^7\times {\mathrm{166561}}^1$

素因数の和:166575

約数の個数: 16

約数和(自身を含む): 42473310

約数和(自身を除く): 21153502

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 166561, 333122, 666244, 1332488, 2664976, 5329952, 10659904, 21319808]

約数ペア:

[(1, 21319808), (2, 10659904), (4, 5329952), (8, 2664976), (16, 1332488), (32, 666244), (64, 333122), (128, 166561)]