21605298

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{149}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 29802702

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 149, 169, 286, 298, 338, 429, 447, 507, 858, 894, 1014, 1639, 1859, 1937, 2197, 3278, 3718, 3874, 4394, 4917, 5577, 5811, 6591, 9834, 11154, 11622, 13182, 21307, 24167, 25181, 42614, 48334, 50362, 63921, 72501, 75543, 127842, 145002, 151086, 276991, 327353, 553982, 654706, 830973, 982059, 1661946, 1964118, 3600883, 7201766, 10802649, 21605298]

約数ペア:

[(1, 21605298), (2, 10802649), (3, 7201766), (6, 3600883), (11, 1964118), (13, 1661946), (22, 982059), (26, 830973), (33, 654706), (39, 553982), (66, 327353), (78, 276991), (143, 151086), (149, 145002), (169, 127842), (286, 75543), (298, 72501), (338, 63921), (429, 50362), (447, 48334), (507, 42614), (858, 25181), (894, 24167), (1014, 21307), (1639, 13182), (1859, 11622), (1937, 11154), (2197, 9834), (3278, 6591), (3718, 5811), (3874, 5577), (4394, 4917)]