18938368

素因数分解:

$2^9\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:852

約数の個数: 40

約数和(自身を含む): 38693952

約数和(自身を除く): 19755584

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 512, 752, 787, 1504, 1574, 3008, 3148, 6016, 6296, 12032, 12592, 24064, 25184, 36989, 50368, 73978, 100736, 147956, 201472, 295912, 402944, 591824, 1183648, 2367296, 4734592, 9469184, 18938368]

約数ペア:

[(1, 18938368), (2, 9469184), (4, 4734592), (8, 2367296), (16, 1183648), (32, 591824), (47, 402944), (64, 295912), (94, 201472), (128, 147956), (188, 100736), (256, 73978), (376, 50368), (512, 36989), (752, 25184), (787, 24064), (1504, 12592), (1574, 12032), (3008, 6296), (3148, 6016)]