21591526

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 15857690

約数列:

[1, 2, 11, 22, 23, 46, 71, 142, 253, 506, 601, 781, 1202, 1562, 1633, 3266, 6611, 13222, 13823, 17963, 27646, 35926, 42671, 85342, 152053, 304106, 469381, 938762, 981433, 1962866, 10795763, 21591526]

約数ペア:

[(1, 21591526), (2, 10795763), (11, 1962866), (22, 981433), (23, 938762), (46, 469381), (71, 304106), (142, 152053), (253, 85342), (506, 42671), (601, 35926), (781, 27646), (1202, 17963), (1562, 13823), (1633, 13222), (3266, 6611)]