21553411835

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1\times {\mathrm{15859}}^1$

素因数の和:16211

約数の個数: 32

約数和(自身を含む): 27954201600

約数和(自身を除く): 6400789765

約数列:

[1, 5, 17, 59, 85, 271, 295, 1003, 1355, 4607, 5015, 15859, 15989, 23035, 79295, 79945, 269603, 271813, 935681, 1348015, 1359065, 4297789, 4678405, 15906577, 21488945, 73062413, 79532885, 253569551, 365312065, 1267847755, 4310682367, 21553411835]

約数ペア:

[(1, 21553411835), (5, 4310682367), (17, 1267847755), (59, 365312065), (85, 253569551), (271, 79532885), (295, 73062413), (1003, 21488945), (1355, 15906577), (4607, 4678405), (5015, 4297789), (15859, 1359065), (15989, 1348015), (23035, 935681), (79295, 271813), (79945, 269603)]