31317111

素因数分解:

$3^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:80

約数の個数: 84

約数和(自身を含む): 59966352

約数和(自身を除く): 28649241

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 51, 57, 63, 81, 119, 133, 153, 171, 189, 243, 323, 357, 361, 399, 459, 513, 567, 729, 969, 1071, 1083, 1197, 1377, 1539, 1701, 2261, 2527, 2907, 3213, 3249, 3591, 4131, 4617, 5103, 6137, 6783, 7581, 8721, 9639, 9747, 10773, 12393, 13851, 18411, 20349, 22743, 26163, 28917, 29241, 32319, 42959, 55233, 61047, 68229, 78489, 86751, 87723, 96957, 128877, 165699, 183141, 204687, 235467, 263169, 386631, 497097, 549423, 614061, 1159893, 1491291, 1648269, 1842183, 3479679, 4473873, 10439037, 31317111]

約数ペア:

[(1, 31317111), (3, 10439037), (7, 4473873), (9, 3479679), (17, 1842183), (19, 1648269), (21, 1491291), (27, 1159893), (51, 614061), (57, 549423), (63, 497097), (81, 386631), (119, 263169), (133, 235467), (153, 204687), (171, 183141), (189, 165699), (243, 128877), (323, 96957), (357, 87723), (361, 86751), (399, 78489), (459, 68229), (513, 61047), (567, 55233), (729, 42959), (969, 32319), (1071, 29241), (1083, 28917), (1197, 26163), (1377, 22743), (1539, 20349), (1701, 18411), (2261, 13851), (2527, 12393), (2907, 10773), (3213, 9747), (3249, 9639), (3591, 8721), (4131, 7581), (4617, 6783), (5103, 6137)]