21858928

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15013}}^1$

素因数の和:15041

約数の個数: 40

約数和(自身を含む): 52128608

約数和(自身を除く): 30269680

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 15013, 30026, 60052, 105091, 120104, 195169, 210182, 240208, 390338, 420364, 780676, 840728, 1366183, 1561352, 1681456, 2732366, 3122704, 5464732, 10929464, 21858928]

約数ペア:

[(1, 21858928), (2, 10929464), (4, 5464732), (7, 3122704), (8, 2732366), (13, 1681456), (14, 1561352), (16, 1366183), (26, 840728), (28, 780676), (52, 420364), (56, 390338), (91, 240208), (104, 210182), (112, 195169), (182, 120104), (208, 105091), (364, 60052), (728, 30026), (1456, 15013)]