30991376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{148997}}^1$

素因数の和:149018

約数の個数: 20

約数和(自身を含む): 64665132

約数和(自身を除く): 33673756

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 148997, 297994, 595988, 1191976, 1936961, 2383952, 3873922, 7747844, 15495688, 30991376]

約数ペア:

[(1, 30991376), (2, 15495688), (4, 7747844), (8, 3873922), (13, 2383952), (16, 1936961), (26, 1191976), (52, 595988), (104, 297994), (208, 148997)]