213845751

素因数分解:

$3^4\times 7^3\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 80

約数和(自身を含む): 383328000

約数和(自身を除く): 169482249

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 81, 129, 147, 179, 189, 301, 343, 387, 441, 537, 567, 903, 1029, 1161, 1253, 1323, 1611, 2107, 2709, 3087, 3483, 3759, 3969, 4833, 6321, 7697, 8127, 8771, 9261, 11277, 14499, 14749, 18963, 23091, 24381, 26313, 27783, 33831, 44247, 53879, 56889, 61397, 69273, 78939, 101493, 132741, 161637, 170667, 184191, 207819, 236817, 377153, 398223, 484911, 552573, 623457, 710451, 1131459, 1194669, 1454733, 1657719, 2640071, 3394377, 4364199, 4973157, 7920213, 10183131, 23760639, 30549393, 71281917, 213845751]

約数ペア:

[(1, 213845751), (3, 71281917), (7, 30549393), (9, 23760639), (21, 10183131), (27, 7920213), (43, 4973157), (49, 4364199), (63, 3394377), (81, 2640071), (129, 1657719), (147, 1454733), (179, 1194669), (189, 1131459), (301, 710451), (343, 623457), (387, 552573), (441, 484911), (537, 398223), (567, 377153), (903, 236817), (1029, 207819), (1161, 184191), (1253, 170667), (1323, 161637), (1611, 132741), (2107, 101493), (2709, 78939), (3087, 69273), (3483, 61397), (3759, 56889), (3969, 53879), (4833, 44247), (6321, 33831), (7697, 27783), (8127, 26313), (8771, 24381), (9261, 23091), (11277, 18963), (14499, 14749)]