28564641

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 21979359

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 149, 153, 179, 357, 447, 537, 1043, 1071, 1253, 1341, 1611, 2533, 3043, 3129, 3759, 7599, 9129, 9387, 11277, 17731, 21301, 22797, 26671, 27387, 53193, 63903, 80013, 159579, 186697, 191709, 240039, 453407, 560091, 1360221, 1680273, 3173849, 4080663, 9521547, 28564641]

約数ペア:

[(1, 28564641), (3, 9521547), (7, 4080663), (9, 3173849), (17, 1680273), (21, 1360221), (51, 560091), (63, 453407), (119, 240039), (149, 191709), (153, 186697), (179, 159579), (357, 80013), (447, 63903), (537, 53193), (1043, 27387), (1071, 26671), (1253, 22797), (1341, 21301), (1611, 17731), (2533, 11277), (3043, 9387), (3129, 9129), (3759, 7599)]