21281952

素因数分解:

$2^5\times 3^1\times {\mathrm{41}}^1\times {\mathrm{5407}}^1$

素因数の和:5461

約数の個数: 48

約数和(自身を含む): 57238272

約数和(自身を除く): 35956320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 82, 96, 123, 164, 246, 328, 492, 656, 984, 1312, 1968, 3936, 5407, 10814, 16221, 21628, 32442, 43256, 64884, 86512, 129768, 173024, 221687, 259536, 443374, 519072, 665061, 886748, 1330122, 1773496, 2660244, 3546992, 5320488, 7093984, 10640976, 21281952]

約数ペア:

[(1, 21281952), (2, 10640976), (3, 7093984), (4, 5320488), (6, 3546992), (8, 2660244), (12, 1773496), (16, 1330122), (24, 886748), (32, 665061), (41, 519072), (48, 443374), (82, 259536), (96, 221687), (123, 173024), (164, 129768), (246, 86512), (328, 64884), (492, 43256), (656, 32442), (984, 21628), (1312, 16221), (1968, 10814), (3936, 5407)]