20885788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:167

約数の個数: 96

約数和(自身を含む): 49674240

約数和(自身を除く): 28788452

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 43, 44, 76, 77, 83, 86, 133, 154, 166, 172, 209, 266, 301, 308, 332, 418, 473, 532, 581, 602, 817, 836, 913, 946, 1162, 1204, 1463, 1577, 1634, 1826, 1892, 2324, 2926, 3154, 3268, 3311, 3569, 3652, 5719, 5852, 6308, 6391, 6622, 7138, 8987, 11039, 11438, 12782, 13244, 14276, 17347, 17974, 22078, 22876, 24983, 25564, 34694, 35948, 39259, 44156, 49966, 62909, 67811, 69388, 78518, 99932, 121429, 125818, 135622, 157036, 242858, 251636, 271244, 274813, 474677, 485716, 549626, 745921, 949354, 1099252, 1491842, 1898708, 2983684, 5221447, 10442894, 20885788]

約数ペア:

[(1, 20885788), (2, 10442894), (4, 5221447), (7, 2983684), (11, 1898708), (14, 1491842), (19, 1099252), (22, 949354), (28, 745921), (38, 549626), (43, 485716), (44, 474677), (76, 274813), (77, 271244), (83, 251636), (86, 242858), (133, 157036), (154, 135622), (166, 125818), (172, 121429), (209, 99932), (266, 78518), (301, 69388), (308, 67811), (332, 62909), (418, 49966), (473, 44156), (532, 39259), (581, 35948), (602, 34694), (817, 25564), (836, 24983), (913, 22876), (946, 22078), (1162, 17974), (1204, 17347), (1463, 14276), (1577, 13244), (1634, 12782), (1826, 11438), (1892, 11039), (2324, 8987), (2926, 7138), (3154, 6622), (3268, 6391), (3311, 6308), (3569, 5852), (3652, 5719)]