19696805919

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{743}}^1\times {\mathrm{1279}}^1$

素因数の和:2089

約数の個数: 72

約数和(自身を含む): 33872117760

約数和(自身を除く): 14175311841

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 743, 987, 1279, 2229, 2303, 2961, 3837, 5201, 6687, 6909, 8953, 11511, 15603, 20727, 26859, 34921, 36407, 46809, 60113, 62671, 80577, 104763, 109221, 180339, 188013, 244447, 314289, 327663, 420791, 541017, 564039, 733341, 950297, 1262373, 1711129, 2200023, 2850891, 2945537, 3787119, 5133387, 6652079, 8552673, 8836611, 15400161, 19956237, 26509833, 44663959, 46564553, 59868711, 133991877, 139693659, 312647713, 401975631, 419080977, 937943139, 2188533991, 2813829417, 6565601973, 19696805919]

約数ペア:

[(1, 19696805919), (3, 6565601973), (7, 2813829417), (9, 2188533991), (21, 937943139), (47, 419080977), (49, 401975631), (63, 312647713), (141, 139693659), (147, 133991877), (329, 59868711), (423, 46564553), (441, 44663959), (743, 26509833), (987, 19956237), (1279, 15400161), (2229, 8836611), (2303, 8552673), (2961, 6652079), (3837, 5133387), (5201, 3787119), (6687, 2945537), (6909, 2850891), (8953, 2200023), (11511, 1711129), (15603, 1262373), (20727, 950297), (26859, 733341), (34921, 564039), (36407, 541017), (46809, 420791), (60113, 327663), (62671, 314289), (80577, 244447), (104763, 188013), (109221, 180339)]