21002752

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 26137088

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 127, 128, 136, 152, 254, 256, 272, 304, 323, 508, 512, 544, 608, 646, 1016, 1088, 1216, 1292, 2032, 2159, 2176, 2413, 2432, 2584, 4064, 4318, 4352, 4826, 4864, 5168, 8128, 8636, 8704, 9652, 9728, 10336, 16256, 17272, 19304, 20672, 32512, 34544, 38608, 41021, 41344, 65024, 69088, 77216, 82042, 82688, 138176, 154432, 164084, 165376, 276352, 308864, 328168, 552704, 617728, 656336, 1105408, 1235456, 1312672, 2625344, 5250688, 10501376, 21002752]

約数ペア:

[(1, 21002752), (2, 10501376), (4, 5250688), (8, 2625344), (16, 1312672), (17, 1235456), (19, 1105408), (32, 656336), (34, 617728), (38, 552704), (64, 328168), (68, 308864), (76, 276352), (127, 165376), (128, 164084), (136, 154432), (152, 138176), (254, 82688), (256, 82042), (272, 77216), (304, 69088), (323, 65024), (508, 41344), (512, 41021), (544, 38608), (608, 34544), (646, 32512), (1016, 20672), (1088, 19304), (1216, 17272), (1292, 16256), (2032, 10336), (2159, 9728), (2176, 9652), (2413, 8704), (2432, 8636), (2584, 8128), (4064, 5168), (4318, 4864), (4352, 4826)]