21702240

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2153}}^1$

素因数の和:2181

約数の個数: 144

約数和(自身を含む): 84678048

約数和(自身を除く): 62975808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2153, 2520, 3360, 4306, 5040, 6459, 8612, 10080, 10765, 12918, 15071, 17224, 19377, 21530, 25836, 30142, 32295, 34448, 38754, 43060, 45213, 51672, 60284, 64590, 68896, 75355, 77508, 86120, 90426, 96885, 103344, 120568, 129180, 135639, 150710, 155016, 172240, 180852, 193770, 206688, 226065, 241136, 258360, 271278, 301420, 310032, 344480, 361704, 387540, 452130, 482272, 516720, 542556, 602840, 620064, 678195, 723408, 775080, 904260, 1033440, 1085112, 1205680, 1356390, 1446816, 1550160, 1808520, 2170224, 2411360, 2712780, 3100320, 3617040, 4340448, 5425560, 7234080, 10851120, 21702240]

約数ペア:

[(1, 21702240), (2, 10851120), (3, 7234080), (4, 5425560), (5, 4340448), (6, 3617040), (7, 3100320), (8, 2712780), (9, 2411360), (10, 2170224), (12, 1808520), (14, 1550160), (15, 1446816), (16, 1356390), (18, 1205680), (20, 1085112), (21, 1033440), (24, 904260), (28, 775080), (30, 723408), (32, 678195), (35, 620064), (36, 602840), (40, 542556), (42, 516720), (45, 482272), (48, 452130), (56, 387540), (60, 361704), (63, 344480), (70, 310032), (72, 301420), (80, 271278), (84, 258360), (90, 241136), (96, 226065), (105, 206688), (112, 193770), (120, 180852), (126, 172240), (140, 155016), (144, 150710), (160, 135639), (168, 129180), (180, 120568), (210, 103344), (224, 96885), (240, 90426), (252, 86120), (280, 77508), (288, 75355), (315, 68896), (336, 64590), (360, 60284), (420, 51672), (480, 45213), (504, 43060), (560, 38754), (630, 34448), (672, 32295), (720, 30142), (840, 25836), (1008, 21530), (1120, 19377), (1260, 17224), (1440, 15071), (1680, 12918), (2016, 10765), (2153, 10080), (2520, 8612), (3360, 6459), (4306, 5040)]