19991808

素因数分解:

$2^8\times 3^2\times {\mathrm{8677}}^1$

素因数の和:8699

約数の個数: 54

約数和(自身を含む): 57647954

約数和(自身を除く): 37656146

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 576, 768, 1152, 2304, 8677, 17354, 26031, 34708, 52062, 69416, 78093, 104124, 138832, 156186, 208248, 277664, 312372, 416496, 555328, 624744, 832992, 1110656, 1249488, 1665984, 2221312, 2498976, 3331968, 4997952, 6663936, 9995904, 19991808]

約数ペア:

[(1, 19991808), (2, 9995904), (3, 6663936), (4, 4997952), (6, 3331968), (8, 2498976), (9, 2221312), (12, 1665984), (16, 1249488), (18, 1110656), (24, 832992), (32, 624744), (36, 555328), (48, 416496), (64, 312372), (72, 277664), (96, 208248), (128, 156186), (144, 138832), (192, 104124), (256, 78093), (288, 69416), (384, 52062), (576, 34708), (768, 26031), (1152, 17354), (2304, 8677)]