21409536

素因数分解:

$2^8\times 3^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 58041424

約数和(自身を除く): 36631888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 64, 96, 122, 128, 183, 192, 244, 256, 366, 384, 457, 488, 732, 768, 914, 976, 1371, 1464, 1828, 1952, 2742, 2928, 3656, 3904, 5484, 5856, 7312, 7808, 10968, 11712, 14624, 15616, 21936, 23424, 27877, 29248, 43872, 46848, 55754, 58496, 83631, 87744, 111508, 116992, 167262, 175488, 223016, 334524, 350976, 446032, 669048, 892064, 1338096, 1784128, 2676192, 3568256, 5352384, 7136512, 10704768, 21409536]

約数ペア:

[(1, 21409536), (2, 10704768), (3, 7136512), (4, 5352384), (6, 3568256), (8, 2676192), (12, 1784128), (16, 1338096), (24, 892064), (32, 669048), (48, 446032), (61, 350976), (64, 334524), (96, 223016), (122, 175488), (128, 167262), (183, 116992), (192, 111508), (244, 87744), (256, 83631), (366, 58496), (384, 55754), (457, 46848), (488, 43872), (732, 29248), (768, 27877), (914, 23424), (976, 21936), (1371, 15616), (1464, 14624), (1828, 11712), (1952, 10968), (2742, 7808), (2928, 7312), (3656, 5856), (3904, 5484)]