21225432

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 56592000

約数和(自身を除く): 35366568

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 89, 114, 152, 178, 228, 267, 356, 456, 523, 534, 712, 1046, 1068, 1569, 1691, 2092, 2136, 3138, 3382, 4184, 5073, 6276, 6764, 9937, 10146, 12552, 13528, 19874, 20292, 29811, 39748, 40584, 46547, 59622, 79496, 93094, 119244, 139641, 186188, 238488, 279282, 372376, 558564, 884393, 1117128, 1768786, 2653179, 3537572, 5306358, 7075144, 10612716, 21225432]

約数ペア:

[(1, 21225432), (2, 10612716), (3, 7075144), (4, 5306358), (6, 3537572), (8, 2653179), (12, 1768786), (19, 1117128), (24, 884393), (38, 558564), (57, 372376), (76, 279282), (89, 238488), (114, 186188), (152, 139641), (178, 119244), (228, 93094), (267, 79496), (356, 59622), (456, 46547), (523, 40584), (534, 39748), (712, 29811), (1046, 20292), (1068, 19874), (1569, 13528), (1691, 12552), (2092, 10146), (2136, 9937), (3138, 6764), (3382, 6276), (4184, 5073)]