21417216

素因数分解:

$2^8\times 3^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 57886080

約数和(自身を除く): 36468864

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 79, 96, 128, 158, 192, 237, 256, 316, 353, 384, 474, 632, 706, 768, 948, 1059, 1264, 1412, 1896, 2118, 2528, 2824, 3792, 4236, 5056, 5648, 7584, 8472, 10112, 11296, 15168, 16944, 20224, 22592, 27887, 30336, 33888, 45184, 55774, 60672, 67776, 83661, 90368, 111548, 135552, 167322, 223096, 271104, 334644, 446192, 669288, 892384, 1338576, 1784768, 2677152, 3569536, 5354304, 7139072, 10708608, 21417216]

約数ペア:

[(1, 21417216), (2, 10708608), (3, 7139072), (4, 5354304), (6, 3569536), (8, 2677152), (12, 1784768), (16, 1338576), (24, 892384), (32, 669288), (48, 446192), (64, 334644), (79, 271104), (96, 223096), (128, 167322), (158, 135552), (192, 111548), (237, 90368), (256, 83661), (316, 67776), (353, 60672), (384, 55774), (474, 45184), (632, 33888), (706, 30336), (768, 27887), (948, 22592), (1059, 20224), (1264, 16944), (1412, 15168), (1896, 11296), (2118, 10112), (2528, 8472), (2824, 7584), (3792, 5648), (4236, 5056)]