21345470

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19583}}^1$

素因数の和:19699

約数の個数: 16

約数和(自身を含む): 38776320

約数和(自身を除く): 17430850

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19583, 39166, 97915, 195830, 2134547, 4269094, 10672735, 21345470]

約数ペア:

[(1, 21345470), (2, 10672735), (5, 4269094), (10, 2134547), (109, 195830), (218, 97915), (545, 39166), (1090, 19583)]