21740628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 64024576

約数和(自身を除く): 42283948

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 43, 52, 78, 84, 86, 91, 129, 156, 172, 182, 258, 273, 301, 364, 463, 516, 546, 559, 602, 903, 926, 1092, 1118, 1204, 1389, 1677, 1806, 1852, 2236, 2778, 3241, 3354, 3612, 3913, 5556, 6019, 6482, 6708, 7826, 9723, 11739, 12038, 12964, 15652, 18057, 19446, 19909, 23478, 24076, 36114, 38892, 39818, 42133, 46956, 59727, 72228, 79636, 84266, 119454, 126399, 139363, 168532, 238908, 252798, 258817, 278726, 418089, 505596, 517634, 557452, 776451, 836178, 1035268, 1552902, 1672356, 1811719, 3105804, 3623438, 5435157, 7246876, 10870314, 21740628]

約数ペア:

[(1, 21740628), (2, 10870314), (3, 7246876), (4, 5435157), (6, 3623438), (7, 3105804), (12, 1811719), (13, 1672356), (14, 1552902), (21, 1035268), (26, 836178), (28, 776451), (39, 557452), (42, 517634), (43, 505596), (52, 418089), (78, 278726), (84, 258817), (86, 252798), (91, 238908), (129, 168532), (156, 139363), (172, 126399), (182, 119454), (258, 84266), (273, 79636), (301, 72228), (364, 59727), (463, 46956), (516, 42133), (546, 39818), (559, 38892), (602, 36114), (903, 24076), (926, 23478), (1092, 19909), (1118, 19446), (1204, 18057), (1389, 15652), (1677, 12964), (1806, 12038), (1852, 11739), (2236, 9723), (2778, 7826), (3241, 6708), (3354, 6482), (3612, 6019), (3913, 5556)]