21186542

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15101458

約数列:

[1, 2, 13, 23, 26, 46, 71, 142, 299, 499, 598, 923, 998, 1633, 1846, 3266, 6487, 11477, 12974, 21229, 22954, 35429, 42458, 70858, 149201, 298402, 460577, 814867, 921154, 1629734, 10593271, 21186542]

約数ペア:

[(1, 21186542), (2, 10593271), (13, 1629734), (23, 921154), (26, 814867), (46, 460577), (71, 298402), (142, 149201), (299, 70858), (499, 42458), (598, 35429), (923, 22954), (998, 21229), (1633, 12974), (1846, 11477), (3266, 6487)]