21168128

素因数分解:

$2^{16}\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 68

約数和(自身を含む): 47185560

約数和(自身を除く): 26017432

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 128, 136, 152, 256, 272, 304, 323, 512, 544, 608, 646, 1024, 1088, 1216, 1292, 2048, 2176, 2432, 2584, 4096, 4352, 4864, 5168, 8192, 8704, 9728, 10336, 16384, 17408, 19456, 20672, 32768, 34816, 38912, 41344, 65536, 69632, 77824, 82688, 139264, 155648, 165376, 278528, 311296, 330752, 557056, 622592, 661504, 1114112, 1245184, 1323008, 2646016, 5292032, 10584064, 21168128]

約数ペア:

[(1, 21168128), (2, 10584064), (4, 5292032), (8, 2646016), (16, 1323008), (17, 1245184), (19, 1114112), (32, 661504), (34, 622592), (38, 557056), (64, 330752), (68, 311296), (76, 278528), (128, 165376), (136, 155648), (152, 139264), (256, 82688), (272, 77824), (304, 69632), (323, 65536), (512, 41344), (544, 38912), (608, 34816), (646, 32768), (1024, 20672), (1088, 19456), (1216, 17408), (1292, 16384), (2048, 10336), (2176, 9728), (2432, 8704), (2584, 8192), (4096, 5168), (4352, 4864)]