21675831807

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{4153}}^1$

素因数の和:4412

約数の個数: 64

約数和(自身を含む): 35390750720

約数和(自身を除く): 13714918913

約数列:

[1, 3, 7, 19, 21, 57, 103, 127, 133, 309, 381, 399, 721, 889, 1957, 2163, 2413, 2667, 4153, 5871, 7239, 12459, 13081, 13699, 16891, 29071, 39243, 41097, 50673, 78907, 87213, 91567, 236721, 248539, 274701, 427759, 527431, 552349, 745617, 1283277, 1582293, 1657047, 1739773, 2994313, 3692017, 5219319, 8127421, 8982939, 10021189, 11076051, 24382263, 30063567, 54325393, 56891947, 70148323, 162976179, 170675841, 210444969, 380277751, 1032182467, 1140833253, 3096547401, 7225277269, 21675831807]

約数ペア:

[(1, 21675831807), (3, 7225277269), (7, 3096547401), (19, 1140833253), (21, 1032182467), (57, 380277751), (103, 210444969), (127, 170675841), (133, 162976179), (309, 70148323), (381, 56891947), (399, 54325393), (721, 30063567), (889, 24382263), (1957, 11076051), (2163, 10021189), (2413, 8982939), (2667, 8127421), (4153, 5219319), (5871, 3692017), (7239, 2994313), (12459, 1739773), (13081, 1657047), (13699, 1582293), (16891, 1283277), (29071, 745617), (39243, 552349), (41097, 527431), (50673, 427759), (78907, 274701), (87213, 248539), (91567, 236721)]