18885944

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 48660480

約数和(自身を除く): 29774536

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 31, 43, 44, 46, 56, 62, 77, 86, 88, 92, 124, 154, 161, 172, 184, 217, 248, 253, 301, 308, 322, 341, 344, 434, 473, 506, 602, 616, 644, 682, 713, 868, 946, 989, 1012, 1204, 1288, 1333, 1364, 1426, 1736, 1771, 1892, 1978, 2024, 2387, 2408, 2666, 2728, 2852, 3311, 3542, 3784, 3956, 4774, 4991, 5332, 5704, 6622, 6923, 7084, 7843, 7912, 9331, 9548, 9982, 10664, 10879, 13244, 13846, 14168, 14663, 15686, 18662, 19096, 19964, 21758, 26488, 27692, 29326, 30659, 31372, 37324, 39928, 43516, 54901, 55384, 58652, 61318, 62744, 74648, 76153, 87032, 102641, 109802, 117304, 122636, 152306, 205282, 214613, 219604, 245272, 304612, 337249, 410564, 429226, 439208, 609224, 674498, 821128, 858452, 1348996, 1716904, 2360743, 2697992, 4721486, 9442972, 18885944]

約数ペア:

[(1, 18885944), (2, 9442972), (4, 4721486), (7, 2697992), (8, 2360743), (11, 1716904), (14, 1348996), (22, 858452), (23, 821128), (28, 674498), (31, 609224), (43, 439208), (44, 429226), (46, 410564), (56, 337249), (62, 304612), (77, 245272), (86, 219604), (88, 214613), (92, 205282), (124, 152306), (154, 122636), (161, 117304), (172, 109802), (184, 102641), (217, 87032), (248, 76153), (253, 74648), (301, 62744), (308, 61318), (322, 58652), (341, 55384), (344, 54901), (434, 43516), (473, 39928), (506, 37324), (602, 31372), (616, 30659), (644, 29326), (682, 27692), (713, 26488), (868, 21758), (946, 19964), (989, 19096), (1012, 18662), (1204, 15686), (1288, 14663), (1333, 14168), (1364, 13846), (1426, 13244), (1736, 10879), (1771, 10664), (1892, 9982), (1978, 9548), (2024, 9331), (2387, 7912), (2408, 7843), (2666, 7084), (2728, 6923), (2852, 6622), (3311, 5704), (3542, 5332), (3784, 4991), (3956, 4774)]