21931462665

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{6427}}^1$

素因数の和:6628

約数の個数: 128

約数和(自身を含む): 46799953920

約数和(自身を除く): 24868491255

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 105, 115, 135, 157, 161, 189, 207, 315, 345, 471, 483, 621, 785, 805, 945, 1035, 1099, 1413, 1449, 2355, 2415, 3105, 3297, 3611, 4239, 4347, 5495, 6427, 7065, 7245, 9891, 10833, 16485, 18055, 19281, 21195, 21735, 25277, 29673, 32135, 32499, 44989, 49455, 54165, 57843, 75831, 96405, 97497, 126385, 134967, 147821, 148365, 162495, 173529, 224945, 227493, 289215, 379155, 404901, 443463, 487485, 674835, 682479, 739105, 867645, 1009039, 1034747, 1137465, 1214703, 1330389, 2024505, 2217315, 3027117, 3104241, 3412395, 3991167, 5045195, 5173735, 6073515, 6651945, 7063273, 9081351, 9312723, 15135585, 15521205, 19955835, 21189819, 23207897, 27244053, 27938169, 35316365, 45406755, 46563615, 63569457, 69623691, 105949095, 116039485, 136220265, 139690845, 162455279, 190708371, 208871073, 317847285, 348118455, 487365837, 626613219, 812276395, 953541855, 1044355365, 1462097511, 2436829185, 3133066095, 4386292533, 7310487555, 21931462665]

約数ペア:

[(1, 21931462665), (3, 7310487555), (5, 4386292533), (7, 3133066095), (9, 2436829185), (15, 1462097511), (21, 1044355365), (23, 953541855), (27, 812276395), (35, 626613219), (45, 487365837), (63, 348118455), (69, 317847285), (105, 208871073), (115, 190708371), (135, 162455279), (157, 139690845), (161, 136220265), (189, 116039485), (207, 105949095), (315, 69623691), (345, 63569457), (471, 46563615), (483, 45406755), (621, 35316365), (785, 27938169), (805, 27244053), (945, 23207897), (1035, 21189819), (1099, 19955835), (1413, 15521205), (1449, 15135585), (2355, 9312723), (2415, 9081351), (3105, 7063273), (3297, 6651945), (3611, 6073515), (4239, 5173735), (4347, 5045195), (5495, 3991167), (6427, 3412395), (7065, 3104241), (7245, 3027117), (9891, 2217315), (10833, 2024505), (16485, 1330389), (18055, 1214703), (19281, 1137465), (21195, 1034747), (21735, 1009039), (25277, 867645), (29673, 739105), (32135, 682479), (32499, 674835), (44989, 487485), (49455, 443463), (54165, 404901), (57843, 379155), (75831, 289215), (96405, 227493), (97497, 224945), (126385, 173529), (134967, 162495), (147821, 148365)]