20211256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6269}}^1$

素因数の和:6319

約数の個数: 32

約数和(自身を含む): 42134400

約数和(自身を除く): 21923144

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6269, 12538, 25076, 50152, 81497, 162994, 194339, 325988, 388678, 651976, 777356, 1554712, 2526407, 5052814, 10105628, 20211256]

約数ペア:

[(1, 20211256), (2, 10105628), (4, 5052814), (8, 2526407), (13, 1554712), (26, 777356), (31, 651976), (52, 388678), (62, 325988), (104, 194339), (124, 162994), (248, 81497), (403, 50152), (806, 25076), (1612, 12538), (3224, 6269)]