18957926

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 32406528

約数和(自身を除く): 13448602

約数列:

[1, 2, 13, 26, 31, 43, 62, 86, 403, 547, 559, 806, 1094, 1118, 1333, 2666, 7111, 14222, 16957, 17329, 23521, 33914, 34658, 47042, 220441, 305773, 440882, 611546, 729151, 1458302, 9478963, 18957926]

約数ペア:

[(1, 18957926), (2, 9478963), (13, 1458302), (26, 729151), (31, 611546), (43, 440882), (62, 305773), (86, 220441), (403, 47042), (547, 34658), (559, 33914), (806, 23521), (1094, 17329), (1118, 16957), (1333, 14222), (2666, 7111)]