21078912

素因数分解:

$2^7\times 3^1\times {\mathrm{17}}^1\times {\mathrm{3229}}^1$

素因数の和:3263

約数の個数: 64

約数和(自身を含む): 59302800

約数和(自身を除く): 38223888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 64, 68, 96, 102, 128, 136, 192, 204, 272, 384, 408, 544, 816, 1088, 1632, 2176, 3229, 3264, 6458, 6528, 9687, 12916, 19374, 25832, 38748, 51664, 54893, 77496, 103328, 109786, 154992, 164679, 206656, 219572, 309984, 329358, 413312, 439144, 619968, 658716, 878288, 1239936, 1317432, 1756576, 2634864, 3513152, 5269728, 7026304, 10539456, 21078912]

約数ペア:

[(1, 21078912), (2, 10539456), (3, 7026304), (4, 5269728), (6, 3513152), (8, 2634864), (12, 1756576), (16, 1317432), (17, 1239936), (24, 878288), (32, 658716), (34, 619968), (48, 439144), (51, 413312), (64, 329358), (68, 309984), (96, 219572), (102, 206656), (128, 164679), (136, 154992), (192, 109786), (204, 103328), (272, 77496), (384, 54893), (408, 51664), (544, 38748), (816, 25832), (1088, 19374), (1632, 12916), (2176, 9687), (3229, 6528), (3264, 6458)]