21380458887

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{86869}}^1$

素因数の和:86968

約数の個数: 48

約数和(自身を含む): 34150334400

約数和(自身を除く): 12769875513

約数列:

[1, 3, 9, 23, 29, 41, 69, 87, 123, 207, 261, 369, 667, 943, 1189, 2001, 2829, 3567, 6003, 8487, 10701, 27347, 82041, 86869, 246123, 260607, 781821, 1997987, 2519201, 3561629, 5993961, 7557603, 10684887, 17981883, 22672809, 32054661, 57941623, 81917467, 103287241, 173824869, 245752401, 309861723, 521474607, 737257203, 929585169, 2375606543, 7126819629, 21380458887]

約数ペア:

[(1, 21380458887), (3, 7126819629), (9, 2375606543), (23, 929585169), (29, 737257203), (41, 521474607), (69, 309861723), (87, 245752401), (123, 173824869), (207, 103287241), (261, 81917467), (369, 57941623), (667, 32054661), (943, 22672809), (1189, 17981883), (2001, 10684887), (2829, 7557603), (3567, 5993961), (6003, 3561629), (8487, 2519201), (10701, 1997987), (27347, 781821), (82041, 260607), (86869, 246123)]