21118320

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3259}}^1$

素因数の和:3284

約数の個数: 100

約数和(自身を含む): 73369560

約数和(自身を除く): 52251240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 3259, 6480, 6518, 9777, 13036, 16295, 19554, 26072, 29331, 32590, 39108, 48885, 52144, 58662, 65180, 78216, 87993, 97770, 117324, 130360, 146655, 156432, 175986, 195540, 234648, 260720, 263979, 293310, 351972, 391080, 439965, 469296, 527958, 586620, 703944, 782160, 879930, 1055916, 1173240, 1319895, 1407888, 1759860, 2111832, 2346480, 2639790, 3519720, 4223664, 5279580, 7039440, 10559160, 21118320]

約数ペア:

[(1, 21118320), (2, 10559160), (3, 7039440), (4, 5279580), (5, 4223664), (6, 3519720), (8, 2639790), (9, 2346480), (10, 2111832), (12, 1759860), (15, 1407888), (16, 1319895), (18, 1173240), (20, 1055916), (24, 879930), (27, 782160), (30, 703944), (36, 586620), (40, 527958), (45, 469296), (48, 439965), (54, 391080), (60, 351972), (72, 293310), (80, 263979), (81, 260720), (90, 234648), (108, 195540), (120, 175986), (135, 156432), (144, 146655), (162, 130360), (180, 117324), (216, 97770), (240, 87993), (270, 78216), (324, 65180), (360, 58662), (405, 52144), (432, 48885), (540, 39108), (648, 32590), (720, 29331), (810, 26072), (1080, 19554), (1296, 16295), (1620, 13036), (2160, 9777), (3240, 6518), (3259, 6480)]