21355466

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 36481536

約数和(自身を除く): 15126070

約数列:

[1, 2, 11, 22, 31, 62, 173, 181, 341, 346, 362, 682, 1903, 1991, 3806, 3982, 5363, 5611, 10726, 11222, 31313, 58993, 61721, 62626, 117986, 123442, 344443, 688886, 970703, 1941406, 10677733, 21355466]

約数ペア:

[(1, 21355466), (2, 10677733), (11, 1941406), (22, 970703), (31, 688886), (62, 344443), (173, 123442), (181, 117986), (341, 62626), (346, 61721), (362, 58993), (682, 31313), (1903, 11222), (1991, 10726), (3806, 5611), (3982, 5363)]