221574388

素因数分解:

$2^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{12541}}^1$

素因数の和:13183

約数の個数: 24

約数和(自身を含む): 443886464

約数和(自身を除く): 222312076

約数列:

[1, 2, 4, 7, 14, 28, 631, 1262, 2524, 4417, 8834, 12541, 17668, 25082, 50164, 87787, 175574, 351148, 7913371, 15826742, 31653484, 55393597, 110787194, 221574388]

約数ペア:

[(1, 221574388), (2, 110787194), (4, 55393597), (7, 31653484), (14, 15826742), (28, 7913371), (631, 351148), (1262, 175574), (2524, 87787), (4417, 50164), (8834, 25082), (12541, 17668)]