21441176

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 41503440

約数和(自身を除く): 20062264

約数列:

[1, 2, 4, 8, 43, 86, 157, 172, 314, 344, 397, 628, 794, 1256, 1588, 3176, 6751, 13502, 17071, 27004, 34142, 54008, 62329, 68284, 124658, 136568, 249316, 498632, 2680147, 5360294, 10720588, 21441176]

約数ペア:

[(1, 21441176), (2, 10720588), (4, 5360294), (8, 2680147), (43, 498632), (86, 249316), (157, 136568), (172, 124658), (314, 68284), (344, 62329), (397, 54008), (628, 34142), (794, 27004), (1256, 17071), (1588, 13502), (3176, 6751)]