18955136

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 41420160

約数和(自身を除く): 22465024

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 248, 272, 281, 496, 527, 544, 562, 992, 1054, 1088, 1124, 1984, 2108, 2176, 2248, 3968, 4216, 4496, 4777, 8432, 8711, 8992, 9554, 16864, 17422, 17984, 19108, 33728, 34844, 35968, 38216, 67456, 69688, 76432, 139376, 148087, 152864, 278752, 296174, 305728, 557504, 592348, 611456, 1115008, 1184696, 2369392, 4738784, 9477568, 18955136]

約数ペア:

[(1, 18955136), (2, 9477568), (4, 4738784), (8, 2369392), (16, 1184696), (17, 1115008), (31, 611456), (32, 592348), (34, 557504), (62, 305728), (64, 296174), (68, 278752), (124, 152864), (128, 148087), (136, 139376), (248, 76432), (272, 69688), (281, 67456), (496, 38216), (527, 35968), (544, 34844), (562, 33728), (992, 19108), (1054, 17984), (1088, 17422), (1124, 16864), (1984, 9554), (2108, 8992), (2176, 8711), (2248, 8432), (3968, 4777), (4216, 4496)]