21126784

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 54345600

約数和(自身を除く): 33218816

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 32, 34, 38, 56, 64, 68, 73, 76, 112, 119, 128, 133, 136, 146, 152, 224, 238, 266, 272, 292, 304, 323, 448, 476, 511, 532, 544, 584, 608, 646, 896, 952, 1022, 1064, 1088, 1168, 1216, 1241, 1292, 1387, 1904, 2044, 2128, 2176, 2261, 2336, 2432, 2482, 2584, 2774, 3808, 4088, 4256, 4522, 4672, 4964, 5168, 5548, 7616, 8176, 8512, 8687, 9044, 9344, 9709, 9928, 10336, 11096, 15232, 16352, 17024, 17374, 18088, 19418, 19856, 20672, 22192, 23579, 32704, 34748, 36176, 38836, 39712, 41344, 44384, 47158, 65408, 69496, 72352, 77672, 79424, 88768, 94316, 138992, 144704, 155344, 158848, 165053, 177536, 188632, 277984, 289408, 310688, 330106, 377264, 555968, 621376, 660212, 754528, 1111936, 1242752, 1320424, 1509056, 2640848, 3018112, 5281696, 10563392, 21126784]

約数ペア:

[(1, 21126784), (2, 10563392), (4, 5281696), (7, 3018112), (8, 2640848), (14, 1509056), (16, 1320424), (17, 1242752), (19, 1111936), (28, 754528), (32, 660212), (34, 621376), (38, 555968), (56, 377264), (64, 330106), (68, 310688), (73, 289408), (76, 277984), (112, 188632), (119, 177536), (128, 165053), (133, 158848), (136, 155344), (146, 144704), (152, 138992), (224, 94316), (238, 88768), (266, 79424), (272, 77672), (292, 72352), (304, 69496), (323, 65408), (448, 47158), (476, 44384), (511, 41344), (532, 39712), (544, 38836), (584, 36176), (608, 34748), (646, 32704), (896, 23579), (952, 22192), (1022, 20672), (1064, 19856), (1088, 19418), (1168, 18088), (1216, 17374), (1241, 17024), (1292, 16352), (1387, 15232), (1904, 11096), (2044, 10336), (2128, 9928), (2176, 9709), (2261, 9344), (2336, 9044), (2432, 8687), (2482, 8512), (2584, 8176), (2774, 7616), (3808, 5548), (4088, 5168), (4256, 4964), (4522, 4672)]