20969432

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 46189440

約数和(自身を除く): 25220008

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 107, 131, 136, 187, 214, 262, 374, 428, 524, 748, 856, 1048, 1177, 1441, 1496, 1819, 2227, 2354, 2882, 3638, 4454, 4708, 5764, 7276, 8908, 9416, 11528, 14017, 14552, 17816, 20009, 24497, 28034, 40018, 48994, 56068, 80036, 97988, 112136, 154187, 160072, 195976, 238289, 308374, 476578, 616748, 953156, 1233496, 1906312, 2621179, 5242358, 10484716, 20969432]

約数ペア:

[(1, 20969432), (2, 10484716), (4, 5242358), (8, 2621179), (11, 1906312), (17, 1233496), (22, 953156), (34, 616748), (44, 476578), (68, 308374), (88, 238289), (107, 195976), (131, 160072), (136, 154187), (187, 112136), (214, 97988), (262, 80036), (374, 56068), (428, 48994), (524, 40018), (748, 28034), (856, 24497), (1048, 20009), (1177, 17816), (1441, 14552), (1496, 14017), (1819, 11528), (2227, 9416), (2354, 8908), (2882, 7276), (3638, 5764), (4454, 4708)]