21106636

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 39270616

約数和(自身を除く): 18163980

約数列:

[1, 2, 4, 41, 43, 73, 82, 86, 146, 164, 172, 292, 1681, 1763, 2993, 3139, 3362, 3526, 5986, 6278, 6724, 7052, 11972, 12556, 72283, 122713, 128699, 144566, 245426, 257398, 289132, 490852, 514796, 5276659, 10553318, 21106636]

約数ペア:

[(1, 21106636), (2, 10553318), (4, 5276659), (41, 514796), (43, 490852), (73, 289132), (82, 257398), (86, 245426), (146, 144566), (164, 128699), (172, 122713), (292, 72283), (1681, 12556), (1763, 11972), (2993, 7052), (3139, 6724), (3362, 6278), (3526, 5986)]