21171332

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1187}}^1$

素因数の和:1225

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 25398268

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 343, 364, 637, 686, 1187, 1274, 1372, 2374, 2548, 4459, 4748, 8309, 8918, 15431, 16618, 17836, 30862, 33236, 58163, 61724, 108017, 116326, 216034, 232652, 407141, 432068, 756119, 814282, 1512238, 1628564, 3024476, 5292833, 10585666, 21171332]

約数ペア:

[(1, 21171332), (2, 10585666), (4, 5292833), (7, 3024476), (13, 1628564), (14, 1512238), (26, 814282), (28, 756119), (49, 432068), (52, 407141), (91, 232652), (98, 216034), (182, 116326), (196, 108017), (343, 61724), (364, 58163), (637, 33236), (686, 30862), (1187, 17836), (1274, 16618), (1372, 15431), (2374, 8918), (2548, 8309), (4459, 4748)]