21015376

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57107}}^1$

素因数の和:57138

約数の個数: 20

約数和(自身を含む): 42488352

約数和(自身を除く): 21472976

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57107, 114214, 228428, 456856, 913712, 1313461, 2626922, 5253844, 10507688, 21015376]

約数ペア:

[(1, 21015376), (2, 10507688), (4, 5253844), (8, 2626922), (16, 1313461), (23, 913712), (46, 456856), (92, 228428), (184, 114214), (368, 57107)]