21407520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:554

約数の個数: 96

約数和(自身を含む): 68245632

約数和(自身を除く): 46838112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 103, 120, 160, 206, 240, 309, 412, 433, 480, 515, 618, 824, 866, 1030, 1236, 1299, 1545, 1648, 1732, 2060, 2165, 2472, 2598, 3090, 3296, 3464, 4120, 4330, 4944, 5196, 6180, 6495, 6928, 8240, 8660, 9888, 10392, 12360, 12990, 13856, 16480, 17320, 20784, 24720, 25980, 34640, 41568, 44599, 49440, 51960, 69280, 89198, 103920, 133797, 178396, 207840, 222995, 267594, 356792, 445990, 535188, 668985, 713584, 891980, 1070376, 1337970, 1427168, 1783960, 2140752, 2675940, 3567920, 4281504, 5351880, 7135840, 10703760, 21407520]

約数ペア:

[(1, 21407520), (2, 10703760), (3, 7135840), (4, 5351880), (5, 4281504), (6, 3567920), (8, 2675940), (10, 2140752), (12, 1783960), (15, 1427168), (16, 1337970), (20, 1070376), (24, 891980), (30, 713584), (32, 668985), (40, 535188), (48, 445990), (60, 356792), (80, 267594), (96, 222995), (103, 207840), (120, 178396), (160, 133797), (206, 103920), (240, 89198), (309, 69280), (412, 51960), (433, 49440), (480, 44599), (515, 41568), (618, 34640), (824, 25980), (866, 24720), (1030, 20784), (1236, 17320), (1299, 16480), (1545, 13856), (1648, 12990), (1732, 12360), (2060, 10392), (2165, 9888), (2472, 8660), (2598, 8240), (3090, 6928), (3296, 6495), (3464, 6180), (4120, 5196), (4330, 4944)]