31927581

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 60364800

約数和(自身を除く): 28437219

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 51, 57, 63, 119, 133, 153, 171, 189, 323, 357, 399, 459, 513, 523, 969, 1071, 1197, 1569, 2261, 2907, 3213, 3591, 3661, 4707, 6783, 8721, 8891, 9937, 10983, 14121, 20349, 26673, 29811, 32949, 61047, 62237, 69559, 80019, 89433, 98847, 168929, 186711, 208677, 240057, 268299, 506787, 560133, 626031, 1182503, 1520361, 1680399, 1878093, 3547509, 4561083, 10642527, 31927581]

約数ペア:

[(1, 31927581), (3, 10642527), (7, 4561083), (9, 3547509), (17, 1878093), (19, 1680399), (21, 1520361), (27, 1182503), (51, 626031), (57, 560133), (63, 506787), (119, 268299), (133, 240057), (153, 208677), (171, 186711), (189, 168929), (323, 98847), (357, 89433), (399, 80019), (459, 69559), (513, 62237), (523, 61047), (969, 32949), (1071, 29811), (1197, 26673), (1569, 20349), (2261, 14121), (2907, 10983), (3213, 9937), (3591, 8891), (3661, 8721), (4707, 6783)]