21000966470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{342761}}^1$

素因数の和:343336

約数の個数: 32

約数和(自身を含む): 41312418336

約数和(自身を除く): 20311451866

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 557, 1114, 2785, 5570, 6127, 12254, 30635, 61270, 342761, 685522, 1713805, 3427610, 3770371, 7540742, 18851855, 37703710, 190917877, 381835754, 954589385, 1909178770, 2100096647, 4200193294, 10500483235, 21000966470]

約数ペア:

[(1, 21000966470), (2, 10500483235), (5, 4200193294), (10, 2100096647), (11, 1909178770), (22, 954589385), (55, 381835754), (110, 190917877), (557, 37703710), (1114, 18851855), (2785, 7540742), (5570, 3770371), (6127, 3427610), (12254, 1713805), (30635, 685522), (61270, 342761)]