20436975

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 43122240

約数和(自身を除く): 22685265

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 27, 39, 45, 51, 65, 75, 85, 117, 135, 137, 153, 195, 221, 225, 255, 325, 351, 411, 425, 459, 585, 663, 675, 685, 765, 975, 1105, 1233, 1275, 1755, 1781, 1989, 2055, 2295, 2329, 2925, 3315, 3425, 3699, 3825, 5343, 5525, 5967, 6165, 6987, 8775, 8905, 9945, 10275, 11475, 11645, 16029, 16575, 18495, 20961, 26715, 29835, 30277, 30825, 34935, 44525, 48087, 49725, 58225, 62883, 80145, 90831, 92475, 104805, 133575, 149175, 151385, 174675, 240435, 272493, 314415, 400725, 454155, 524025, 756925, 817479, 1202175, 1362465, 1572075, 2270775, 4087395, 6812325, 20436975]

約数ペア:

[(1, 20436975), (3, 6812325), (5, 4087395), (9, 2270775), (13, 1572075), (15, 1362465), (17, 1202175), (25, 817479), (27, 756925), (39, 524025), (45, 454155), (51, 400725), (65, 314415), (75, 272493), (85, 240435), (117, 174675), (135, 151385), (137, 149175), (153, 133575), (195, 104805), (221, 92475), (225, 90831), (255, 80145), (325, 62883), (351, 58225), (411, 49725), (425, 48087), (459, 44525), (585, 34935), (663, 30825), (675, 30277), (685, 29835), (765, 26715), (975, 20961), (1105, 18495), (1233, 16575), (1275, 16029), (1755, 11645), (1781, 11475), (1989, 10275), (2055, 9945), (2295, 8905), (2329, 8775), (2925, 6987), (3315, 6165), (3425, 5967), (3699, 5525), (3825, 5343)]