20189476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{631}}^1$

素因数の和:1075

約数の個数: 24

約数和(自身を含む): 37338560

約数和(自身を除く): 17149084

約数列:

[1, 2, 4, 19, 38, 76, 421, 631, 842, 1262, 1684, 2524, 7999, 11989, 15998, 23978, 31996, 47956, 265651, 531302, 1062604, 5047369, 10094738, 20189476]

約数ペア:

[(1, 20189476), (2, 10094738), (4, 5047369), (19, 1062604), (38, 531302), (76, 265651), (421, 47956), (631, 31996), (842, 23978), (1262, 15998), (1684, 11989), (2524, 7999)]