18839128

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 47647440

約数和(自身を除く): 28808312

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 49, 56, 68, 77, 88, 98, 119, 136, 154, 187, 196, 238, 257, 308, 374, 392, 476, 514, 539, 616, 748, 833, 952, 1028, 1078, 1309, 1496, 1666, 1799, 2056, 2156, 2618, 2827, 3332, 3598, 4312, 4369, 5236, 5654, 6664, 7196, 8738, 9163, 10472, 11308, 12593, 14392, 17476, 18326, 19789, 22616, 25186, 30583, 34952, 36652, 39578, 48059, 50372, 61166, 73304, 79156, 96118, 100744, 122332, 138523, 158312, 192236, 214081, 244664, 277046, 336413, 384472, 428162, 554092, 672826, 856324, 1108184, 1345652, 1712648, 2354891, 2691304, 4709782, 9419564, 18839128]

約数ペア:

[(1, 18839128), (2, 9419564), (4, 4709782), (7, 2691304), (8, 2354891), (11, 1712648), (14, 1345652), (17, 1108184), (22, 856324), (28, 672826), (34, 554092), (44, 428162), (49, 384472), (56, 336413), (68, 277046), (77, 244664), (88, 214081), (98, 192236), (119, 158312), (136, 138523), (154, 122332), (187, 100744), (196, 96118), (238, 79156), (257, 73304), (308, 61166), (374, 50372), (392, 48059), (476, 39578), (514, 36652), (539, 34952), (616, 30583), (748, 25186), (833, 22616), (952, 19789), (1028, 18326), (1078, 17476), (1309, 14392), (1496, 12593), (1666, 11308), (1799, 10472), (2056, 9163), (2156, 8738), (2618, 7196), (2827, 6664), (3332, 5654), (3598, 5236), (4312, 4369)]