21551072

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 44008272

約数和(自身を除く): 22457200

約数列:

[1, 2, 4, 8, 16, 32, 53, 97, 106, 131, 194, 212, 262, 388, 424, 524, 776, 848, 1048, 1552, 1696, 2096, 3104, 4192, 5141, 6943, 10282, 12707, 13886, 20564, 25414, 27772, 41128, 50828, 55544, 82256, 101656, 111088, 164512, 203312, 222176, 406624, 673471, 1346942, 2693884, 5387768, 10775536, 21551072]

約数ペア:

[(1, 21551072), (2, 10775536), (4, 5387768), (8, 2693884), (16, 1346942), (32, 673471), (53, 406624), (97, 222176), (106, 203312), (131, 164512), (194, 111088), (212, 101656), (262, 82256), (388, 55544), (424, 50828), (524, 41128), (776, 27772), (848, 25414), (1048, 20564), (1552, 13886), (1696, 12707), (2096, 10282), (3104, 6943), (4192, 5141)]