21302138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:590

約数の個数: 32

約数和(自身を含む): 37824192

約数和(自身を除く): 16522054

約数列:

[1, 2, 11, 13, 22, 26, 143, 211, 286, 353, 422, 706, 2321, 2743, 3883, 4589, 4642, 5486, 7766, 9178, 30173, 50479, 60346, 74483, 100958, 148966, 819313, 968279, 1638626, 1936558, 10651069, 21302138]

約数ペア:

[(1, 21302138), (2, 10651069), (11, 1936558), (13, 1638626), (22, 968279), (26, 819313), (143, 148966), (211, 100958), (286, 74483), (353, 60346), (422, 50479), (706, 30173), (2321, 9178), (2743, 7766), (3883, 5486), (4589, 4642)]