19818368

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 43146000

約数和(自身を除く): 23327632

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 128, 152, 232, 281, 304, 464, 551, 562, 608, 928, 1102, 1124, 1216, 1856, 2204, 2248, 2432, 3712, 4408, 4496, 5339, 8149, 8816, 8992, 10678, 16298, 17632, 17984, 21356, 32596, 35264, 35968, 42712, 65192, 70528, 85424, 130384, 154831, 170848, 260768, 309662, 341696, 521536, 619324, 683392, 1043072, 1238648, 2477296, 4954592, 9909184, 19818368]

約数ペア:

[(1, 19818368), (2, 9909184), (4, 4954592), (8, 2477296), (16, 1238648), (19, 1043072), (29, 683392), (32, 619324), (38, 521536), (58, 341696), (64, 309662), (76, 260768), (116, 170848), (128, 154831), (152, 130384), (232, 85424), (281, 70528), (304, 65192), (464, 42712), (551, 35968), (562, 35264), (608, 32596), (928, 21356), (1102, 17984), (1124, 17632), (1216, 16298), (1856, 10678), (2204, 8992), (2248, 8816), (2432, 8149), (3712, 5339), (4408, 4496)]