21139937307

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{19309}}^1$

素因数の和:19425

約数の個数: 64

約数和(自身を含む): 34257484800

約数和(自身を除く): 13117547493

約数列:

[1, 3, 9, 23, 27, 41, 43, 69, 123, 129, 207, 369, 387, 621, 943, 989, 1107, 1161, 1763, 2829, 2967, 5289, 8487, 8901, 15867, 19309, 25461, 26703, 40549, 47601, 57927, 121647, 173781, 364941, 444107, 521343, 791669, 830287, 1094823, 1332321, 2375007, 2490861, 3996963, 7125021, 7472583, 11990889, 18208387, 19096601, 21375063, 22417749, 34041767, 54625161, 57289803, 102125301, 163875483, 171869409, 306375903, 491626449, 515608227, 782960641, 919127709, 2348881923, 7046645769, 21139937307]

約数ペア:

[(1, 21139937307), (3, 7046645769), (9, 2348881923), (23, 919127709), (27, 782960641), (41, 515608227), (43, 491626449), (69, 306375903), (123, 171869409), (129, 163875483), (207, 102125301), (369, 57289803), (387, 54625161), (621, 34041767), (943, 22417749), (989, 21375063), (1107, 19096601), (1161, 18208387), (1763, 11990889), (2829, 7472583), (2967, 7125021), (5289, 3996963), (8487, 2490861), (8901, 2375007), (15867, 1332321), (19309, 1094823), (25461, 830287), (26703, 791669), (40549, 521343), (47601, 444107), (57927, 364941), (121647, 173781)]