21254254

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 17107346

約数列:

[1, 2, 7, 14, 23, 46, 149, 161, 298, 322, 443, 886, 1043, 2086, 3101, 3427, 6202, 6854, 10189, 20378, 23989, 47978, 66007, 71323, 132014, 142646, 462049, 924098, 1518161, 3036322, 10627127, 21254254]

約数ペア:

[(1, 21254254), (2, 10627127), (7, 3036322), (14, 1518161), (23, 924098), (46, 462049), (149, 142646), (161, 132014), (298, 71323), (322, 66007), (443, 47978), (886, 23989), (1043, 20378), (2086, 10189), (3101, 6854), (3427, 6202)]