20691476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5939}}^1$

素因数の和:6023

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 18892684

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 5939, 11878, 23756, 77207, 154414, 308828, 397913, 795826, 1591652, 5172869, 10345738, 20691476]

約数ペア:

[(1, 20691476), (2, 10345738), (4, 5172869), (13, 1591652), (26, 795826), (52, 397913), (67, 308828), (134, 154414), (268, 77207), (871, 23756), (1742, 11878), (3484, 5939)]