21204736

素因数分解:

$2^8\times 7^1\times {\mathrm{11833}}^1$

素因数の和:11856

約数の個数: 36

約数和(自身を含む): 48377392

約数和(自身を除く): 27172656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11833, 23666, 47332, 82831, 94664, 165662, 189328, 331324, 378656, 662648, 757312, 1325296, 1514624, 2650592, 3029248, 5301184, 10602368, 21204736]

約数ペア:

[(1, 21204736), (2, 10602368), (4, 5301184), (7, 3029248), (8, 2650592), (14, 1514624), (16, 1325296), (28, 757312), (32, 662648), (56, 378656), (64, 331324), (112, 189328), (128, 165662), (224, 94664), (256, 82831), (448, 47332), (896, 23666), (1792, 11833)]