21374704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102763}}^1$

素因数の和:102784

約数の個数: 20

約数和(自身を含む): 44599576

約数和(自身を除く): 23224872

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102763, 205526, 411052, 822104, 1335919, 1644208, 2671838, 5343676, 10687352, 21374704]

約数ペア:

[(1, 21374704), (2, 10687352), (4, 5343676), (8, 2671838), (13, 1644208), (16, 1335919), (26, 822104), (52, 411052), (104, 205526), (208, 102763)]