21504184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12163}}^1$

素因数の和:12199

約数の個数: 32

約数和(自身を含む): 45979920

約数和(自身を除く): 24475736

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12163, 24326, 48652, 97304, 158119, 206771, 316238, 413542, 632476, 827084, 1264952, 1654168, 2688023, 5376046, 10752092, 21504184]

約数ペア:

[(1, 21504184), (2, 10752092), (4, 5376046), (8, 2688023), (13, 1654168), (17, 1264952), (26, 827084), (34, 632476), (52, 413542), (68, 316238), (104, 206771), (136, 158119), (221, 97304), (442, 48652), (884, 24326), (1768, 12163)]