21033675

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 45372096

約数和(自身を除く): 24338421

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 27, 39, 45, 47, 51, 65, 75, 81, 85, 117, 135, 141, 153, 195, 221, 225, 235, 255, 325, 351, 405, 423, 425, 459, 585, 611, 663, 675, 705, 765, 799, 975, 1053, 1105, 1175, 1269, 1275, 1377, 1755, 1833, 1989, 2025, 2115, 2295, 2397, 2925, 3055, 3315, 3525, 3807, 3825, 3995, 5265, 5499, 5525, 5967, 6345, 6885, 7191, 8775, 9165, 9945, 10387, 10575, 11475, 11985, 15275, 16497, 16575, 17901, 19035, 19975, 21573, 26325, 27495, 29835, 31161, 31725, 34425, 35955, 45825, 49491, 49725, 51935, 59925, 64719, 82485, 89505, 93483, 95175, 107865, 137475, 149175, 155805, 179775, 247455, 259675, 280449, 323595, 412425, 447525, 467415, 539325, 779025, 841347, 1237275, 1402245, 1617975, 2337075, 4206735, 7011225, 21033675]

約数ペア:

[(1, 21033675), (3, 7011225), (5, 4206735), (9, 2337075), (13, 1617975), (15, 1402245), (17, 1237275), (25, 841347), (27, 779025), (39, 539325), (45, 467415), (47, 447525), (51, 412425), (65, 323595), (75, 280449), (81, 259675), (85, 247455), (117, 179775), (135, 155805), (141, 149175), (153, 137475), (195, 107865), (221, 95175), (225, 93483), (235, 89505), (255, 82485), (325, 64719), (351, 59925), (405, 51935), (423, 49725), (425, 49491), (459, 45825), (585, 35955), (611, 34425), (663, 31725), (675, 31161), (705, 29835), (765, 27495), (799, 26325), (975, 21573), (1053, 19975), (1105, 19035), (1175, 17901), (1269, 16575), (1275, 16497), (1377, 15275), (1755, 11985), (1833, 11475), (1989, 10575), (2025, 10387), (2115, 9945), (2295, 9165), (2397, 8775), (2925, 7191), (3055, 6885), (3315, 6345), (3525, 5967), (3807, 5525), (3825, 5499), (3995, 5265)]