216415871

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 269568000

約数和(自身を除く): 53152129

約数列:

[1, 7, 19, 47, 89, 133, 329, 389, 623, 893, 1691, 2723, 4183, 6251, 7391, 11837, 18283, 29281, 34621, 51737, 79477, 127981, 242347, 347377, 556339, 657799, 1627187, 2431639, 4604593, 11390309, 30916553, 216415871]

約数ペア:

[(1, 216415871), (7, 30916553), (19, 11390309), (47, 4604593), (89, 2431639), (133, 1627187), (329, 657799), (389, 556339), (623, 347377), (893, 242347), (1691, 127981), (2723, 79477), (4183, 51737), (6251, 34621), (7391, 29281), (11837, 18283)]