20351856

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:551

約数の個数: 120

約数和(自身を含む): 64884240

約数和(自身を除く): 44532384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 48, 49, 51, 56, 68, 84, 98, 102, 112, 119, 136, 147, 168, 196, 204, 238, 272, 294, 336, 357, 392, 408, 476, 509, 588, 714, 784, 816, 833, 952, 1018, 1176, 1428, 1527, 1666, 1904, 2036, 2352, 2499, 2856, 3054, 3332, 3563, 4072, 4998, 5712, 6108, 6664, 7126, 8144, 8653, 9996, 10689, 12216, 13328, 14252, 17306, 19992, 21378, 24432, 24941, 25959, 28504, 34612, 39984, 42756, 49882, 51918, 57008, 60571, 69224, 74823, 85512, 99764, 103836, 121142, 138448, 149646, 171024, 181713, 199528, 207672, 242284, 299292, 363426, 399056, 415344, 423997, 484568, 598584, 726852, 847994, 969136, 1197168, 1271991, 1453704, 1695988, 2543982, 2907408, 3391976, 5087964, 6783952, 10175928, 20351856]

約数ペア:

[(1, 20351856), (2, 10175928), (3, 6783952), (4, 5087964), (6, 3391976), (7, 2907408), (8, 2543982), (12, 1695988), (14, 1453704), (16, 1271991), (17, 1197168), (21, 969136), (24, 847994), (28, 726852), (34, 598584), (42, 484568), (48, 423997), (49, 415344), (51, 399056), (56, 363426), (68, 299292), (84, 242284), (98, 207672), (102, 199528), (112, 181713), (119, 171024), (136, 149646), (147, 138448), (168, 121142), (196, 103836), (204, 99764), (238, 85512), (272, 74823), (294, 69224), (336, 60571), (357, 57008), (392, 51918), (408, 49882), (476, 42756), (509, 39984), (588, 34612), (714, 28504), (784, 25959), (816, 24941), (833, 24432), (952, 21378), (1018, 19992), (1176, 17306), (1428, 14252), (1527, 13328), (1666, 12216), (1904, 10689), (2036, 9996), (2352, 8653), (2499, 8144), (2856, 7126), (3054, 6664), (3332, 6108), (3563, 5712), (4072, 4998)]