21108960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 144

約数和(自身を含む): 73238256

約数和(自身を除く): 52129296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 107, 120, 137, 144, 160, 180, 214, 240, 274, 288, 321, 360, 411, 428, 480, 535, 548, 642, 685, 720, 822, 856, 963, 1070, 1096, 1233, 1284, 1370, 1440, 1605, 1644, 1712, 1926, 2055, 2140, 2192, 2466, 2568, 2740, 3210, 3288, 3424, 3852, 4110, 4280, 4384, 4815, 4932, 5136, 5480, 6165, 6420, 6576, 7704, 8220, 8560, 9630, 9864, 10272, 10960, 12330, 12840, 13152, 14659, 15408, 16440, 17120, 19260, 19728, 21920, 24660, 25680, 29318, 30816, 32880, 38520, 39456, 43977, 49320, 51360, 58636, 65760, 73295, 77040, 87954, 98640, 117272, 131931, 146590, 154080, 175908, 197280, 219885, 234544, 263862, 293180, 351816, 439770, 469088, 527724, 586360, 659655, 703632, 879540, 1055448, 1172720, 1319310, 1407264, 1759080, 2110896, 2345440, 2638620, 3518160, 4221792, 5277240, 7036320, 10554480, 21108960]

約数ペア:

[(1, 21108960), (2, 10554480), (3, 7036320), (4, 5277240), (5, 4221792), (6, 3518160), (8, 2638620), (9, 2345440), (10, 2110896), (12, 1759080), (15, 1407264), (16, 1319310), (18, 1172720), (20, 1055448), (24, 879540), (30, 703632), (32, 659655), (36, 586360), (40, 527724), (45, 469088), (48, 439770), (60, 351816), (72, 293180), (80, 263862), (90, 234544), (96, 219885), (107, 197280), (120, 175908), (137, 154080), (144, 146590), (160, 131931), (180, 117272), (214, 98640), (240, 87954), (274, 77040), (288, 73295), (321, 65760), (360, 58636), (411, 51360), (428, 49320), (480, 43977), (535, 39456), (548, 38520), (642, 32880), (685, 30816), (720, 29318), (822, 25680), (856, 24660), (963, 21920), (1070, 19728), (1096, 19260), (1233, 17120), (1284, 16440), (1370, 15408), (1440, 14659), (1605, 13152), (1644, 12840), (1712, 12330), (1926, 10960), (2055, 10272), (2140, 9864), (2192, 9630), (2466, 8560), (2568, 8220), (2740, 7704), (3210, 6576), (3288, 6420), (3424, 6165), (3852, 5480), (4110, 5136), (4280, 4932), (4384, 4815)]