19977664

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2347}}^1$

素因数の和:2385

約数の個数: 56

約数和(自身を含む): 47711360

約数和(自身を除く): 27733696

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 133, 152, 224, 266, 304, 448, 532, 608, 1064, 1216, 2128, 2347, 4256, 4694, 8512, 9388, 16429, 18776, 32858, 37552, 44593, 65716, 75104, 89186, 131432, 150208, 178372, 262864, 312151, 356744, 525728, 624302, 713488, 1051456, 1248604, 1426976, 2497208, 2853952, 4994416, 9988832, 19977664]

約数ペア:

[(1, 19977664), (2, 9988832), (4, 4994416), (7, 2853952), (8, 2497208), (14, 1426976), (16, 1248604), (19, 1051456), (28, 713488), (32, 624302), (38, 525728), (56, 356744), (64, 312151), (76, 262864), (112, 178372), (133, 150208), (152, 131432), (224, 89186), (266, 75104), (304, 65716), (448, 44593), (532, 37552), (608, 32858), (1064, 18776), (1216, 16429), (2128, 9388), (2347, 8512), (4256, 4694)]