20970456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67213}}^1$

素因数の和:67235

約数の個数: 32

約数和(自身を含む): 56459760

約数和(自身を除く): 35489304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67213, 134426, 201639, 268852, 403278, 537704, 806556, 873769, 1613112, 1747538, 2621307, 3495076, 5242614, 6990152, 10485228, 20970456]

約数ペア:

[(1, 20970456), (2, 10485228), (3, 6990152), (4, 5242614), (6, 3495076), (8, 2621307), (12, 1747538), (13, 1613112), (24, 873769), (26, 806556), (39, 537704), (52, 403278), (78, 268852), (104, 201639), (156, 134426), (312, 67213)]