21311584

素因数分解:

$2^5\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1069}}^1$

素因数の和:1175

約数の個数: 48

約数和(自身を含む): 48535200

約数和(自身を除く): 27223616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 89, 112, 178, 224, 356, 623, 712, 1069, 1246, 1424, 2138, 2492, 2848, 4276, 4984, 7483, 8552, 9968, 14966, 17104, 19936, 29932, 34208, 59864, 95141, 119728, 190282, 239456, 380564, 665987, 761128, 1331974, 1522256, 2663948, 3044512, 5327896, 10655792, 21311584]

約数ペア:

[(1, 21311584), (2, 10655792), (4, 5327896), (7, 3044512), (8, 2663948), (14, 1522256), (16, 1331974), (28, 761128), (32, 665987), (56, 380564), (89, 239456), (112, 190282), (178, 119728), (224, 95141), (356, 59864), (623, 34208), (712, 29932), (1069, 19936), (1246, 17104), (1424, 14966), (2138, 9968), (2492, 8552), (2848, 7483), (4276, 4984)]