21781248

素因数分解:

$2^8\times 3^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 58867200

約数和(自身を除く): 37085952

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 79, 96, 128, 158, 192, 237, 256, 316, 359, 384, 474, 632, 718, 768, 948, 1077, 1264, 1436, 1896, 2154, 2528, 2872, 3792, 4308, 5056, 5744, 7584, 8616, 10112, 11488, 15168, 17232, 20224, 22976, 28361, 30336, 34464, 45952, 56722, 60672, 68928, 85083, 91904, 113444, 137856, 170166, 226888, 275712, 340332, 453776, 680664, 907552, 1361328, 1815104, 2722656, 3630208, 5445312, 7260416, 10890624, 21781248]

約数ペア:

[(1, 21781248), (2, 10890624), (3, 7260416), (4, 5445312), (6, 3630208), (8, 2722656), (12, 1815104), (16, 1361328), (24, 907552), (32, 680664), (48, 453776), (64, 340332), (79, 275712), (96, 226888), (128, 170166), (158, 137856), (192, 113444), (237, 91904), (256, 85083), (316, 68928), (359, 60672), (384, 56722), (474, 45952), (632, 34464), (718, 30336), (768, 28361), (948, 22976), (1077, 20224), (1264, 17232), (1436, 15168), (1896, 11488), (2154, 10112), (2528, 8616), (2872, 7584), (3792, 5744), (4308, 5056)]