21827744

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 22879072

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 127, 131, 164, 254, 262, 328, 508, 524, 656, 1016, 1048, 1312, 2032, 2096, 4064, 4192, 5207, 5371, 10414, 10742, 16637, 20828, 21484, 33274, 41656, 42968, 66548, 83312, 85936, 133096, 166624, 171872, 266192, 532384, 682117, 1364234, 2728468, 5456936, 10913872, 21827744]

約数ペア:

[(1, 21827744), (2, 10913872), (4, 5456936), (8, 2728468), (16, 1364234), (32, 682117), (41, 532384), (82, 266192), (127, 171872), (131, 166624), (164, 133096), (254, 85936), (262, 83312), (328, 66548), (508, 42968), (524, 41656), (656, 33274), (1016, 21484), (1048, 20828), (1312, 16637), (2032, 10742), (2096, 10414), (4064, 5371), (4192, 5207)]