21036720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 160

約数和(自身を含む): 70566912

約数和(自身を除く): 49530192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 37, 40, 46, 48, 60, 69, 74, 80, 92, 103, 111, 115, 120, 138, 148, 184, 185, 206, 222, 230, 240, 276, 296, 309, 345, 368, 370, 412, 444, 460, 515, 552, 555, 592, 618, 690, 740, 824, 851, 888, 920, 1030, 1104, 1110, 1236, 1380, 1480, 1545, 1648, 1702, 1776, 1840, 2060, 2220, 2369, 2472, 2553, 2760, 2960, 3090, 3404, 3811, 4120, 4255, 4440, 4738, 4944, 5106, 5520, 6180, 6808, 7107, 7622, 8240, 8510, 8880, 9476, 10212, 11433, 11845, 12360, 12765, 13616, 14214, 15244, 17020, 18952, 19055, 20424, 22866, 23690, 24720, 25530, 28428, 30488, 34040, 35535, 37904, 38110, 40848, 45732, 47380, 51060, 56856, 57165, 60976, 68080, 71070, 76220, 87653, 91464, 94760, 102120, 113712, 114330, 142140, 152440, 175306, 182928, 189520, 204240, 228660, 262959, 284280, 304880, 350612, 438265, 457320, 525918, 568560, 701224, 876530, 914640, 1051836, 1314795, 1402448, 1753060, 2103672, 2629590, 3506120, 4207344, 5259180, 7012240, 10518360, 21036720]

約数ペア:

[(1, 21036720), (2, 10518360), (3, 7012240), (4, 5259180), (5, 4207344), (6, 3506120), (8, 2629590), (10, 2103672), (12, 1753060), (15, 1402448), (16, 1314795), (20, 1051836), (23, 914640), (24, 876530), (30, 701224), (37, 568560), (40, 525918), (46, 457320), (48, 438265), (60, 350612), (69, 304880), (74, 284280), (80, 262959), (92, 228660), (103, 204240), (111, 189520), (115, 182928), (120, 175306), (138, 152440), (148, 142140), (184, 114330), (185, 113712), (206, 102120), (222, 94760), (230, 91464), (240, 87653), (276, 76220), (296, 71070), (309, 68080), (345, 60976), (368, 57165), (370, 56856), (412, 51060), (444, 47380), (460, 45732), (515, 40848), (552, 38110), (555, 37904), (592, 35535), (618, 34040), (690, 30488), (740, 28428), (824, 25530), (851, 24720), (888, 23690), (920, 22866), (1030, 20424), (1104, 19055), (1110, 18952), (1236, 17020), (1380, 15244), (1480, 14214), (1545, 13616), (1648, 12765), (1702, 12360), (1776, 11845), (1840, 11433), (2060, 10212), (2220, 9476), (2369, 8880), (2472, 8510), (2553, 8240), (2760, 7622), (2960, 7107), (3090, 6808), (3404, 6180), (3811, 5520), (4120, 5106), (4255, 4944), (4440, 4738)]