18681344

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 80

約数和(自身を含む): 42425856

約数和(自身を除く): 23744512

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 107, 124, 128, 176, 214, 248, 256, 341, 352, 428, 496, 512, 682, 704, 856, 992, 1177, 1364, 1408, 1712, 1984, 2354, 2728, 2816, 3317, 3424, 3968, 4708, 5456, 5632, 6634, 6848, 7936, 9416, 10912, 13268, 13696, 15872, 18832, 21824, 26536, 27392, 36487, 37664, 43648, 53072, 54784, 72974, 75328, 87296, 106144, 145948, 150656, 174592, 212288, 291896, 301312, 424576, 583792, 602624, 849152, 1167584, 1698304, 2335168, 4670336, 9340672, 18681344]

約数ペア:

[(1, 18681344), (2, 9340672), (4, 4670336), (8, 2335168), (11, 1698304), (16, 1167584), (22, 849152), (31, 602624), (32, 583792), (44, 424576), (62, 301312), (64, 291896), (88, 212288), (107, 174592), (124, 150656), (128, 145948), (176, 106144), (214, 87296), (248, 75328), (256, 72974), (341, 54784), (352, 53072), (428, 43648), (496, 37664), (512, 36487), (682, 27392), (704, 26536), (856, 21824), (992, 18832), (1177, 15872), (1364, 13696), (1408, 13268), (1712, 10912), (1984, 9416), (2354, 7936), (2728, 6848), (2816, 6634), (3317, 5632), (3424, 5456), (3968, 4708)]