21181884

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1523}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 52913280

約数和(自身を除く): 31731396

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 61, 76, 114, 122, 183, 228, 244, 366, 732, 1159, 1523, 2318, 3046, 3477, 4569, 4636, 6092, 6954, 9138, 13908, 18276, 28937, 57874, 86811, 92903, 115748, 173622, 185806, 278709, 347244, 371612, 557418, 1114836, 1765157, 3530314, 5295471, 7060628, 10590942, 21181884]

約数ペア:

[(1, 21181884), (2, 10590942), (3, 7060628), (4, 5295471), (6, 3530314), (12, 1765157), (19, 1114836), (38, 557418), (57, 371612), (61, 347244), (76, 278709), (114, 185806), (122, 173622), (183, 115748), (228, 92903), (244, 86811), (366, 57874), (732, 28937), (1159, 18276), (1523, 13908), (2318, 9138), (3046, 6954), (3477, 6092), (4569, 4636)]