21432960

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{61}}^2$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 75243870

約数和(自身を除く): 53810910

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, 61, 64, 72, 80, 90, 96, 120, 122, 128, 144, 160, 180, 183, 192, 240, 244, 288, 305, 320, 360, 366, 384, 480, 488, 549, 576, 610, 640, 720, 732, 915, 960, 976, 1098, 1152, 1220, 1440, 1464, 1830, 1920, 1952, 2196, 2440, 2745, 2880, 2928, 3660, 3721, 3904, 4392, 4880, 5490, 5760, 5856, 7320, 7442, 7808, 8784, 9760, 10980, 11163, 11712, 14640, 14884, 17568, 18605, 19520, 21960, 22326, 23424, 29280, 29768, 33489, 35136, 37210, 39040, 43920, 44652, 55815, 58560, 59536, 66978, 70272, 74420, 87840, 89304, 111630, 117120, 119072, 133956, 148840, 167445, 175680, 178608, 223260, 238144, 267912, 297680, 334890, 351360, 357216, 446520, 476288, 535824, 595360, 669780, 714432, 893040, 1071648, 1190720, 1339560, 1428864, 1786080, 2143296, 2381440, 2679120, 3572160, 4286592, 5358240, 7144320, 10716480, 21432960]

約数ペア:

[(1, 21432960), (2, 10716480), (3, 7144320), (4, 5358240), (5, 4286592), (6, 3572160), (8, 2679120), (9, 2381440), (10, 2143296), (12, 1786080), (15, 1428864), (16, 1339560), (18, 1190720), (20, 1071648), (24, 893040), (30, 714432), (32, 669780), (36, 595360), (40, 535824), (45, 476288), (48, 446520), (60, 357216), (61, 351360), (64, 334890), (72, 297680), (80, 267912), (90, 238144), (96, 223260), (120, 178608), (122, 175680), (128, 167445), (144, 148840), (160, 133956), (180, 119072), (183, 117120), (192, 111630), (240, 89304), (244, 87840), (288, 74420), (305, 70272), (320, 66978), (360, 59536), (366, 58560), (384, 55815), (480, 44652), (488, 43920), (549, 39040), (576, 37210), (610, 35136), (640, 33489), (720, 29768), (732, 29280), (915, 23424), (960, 22326), (976, 21960), (1098, 19520), (1152, 18605), (1220, 17568), (1440, 14884), (1464, 14640), (1830, 11712), (1920, 11163), (1952, 10980), (2196, 9760), (2440, 8784), (2745, 7808), (2880, 7442), (2928, 7320), (3660, 5856), (3721, 5760), (3904, 5490), (4392, 4880)]