20850928

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2243}}^1$

素因数の和:2341

約数の個数: 40

約数和(自身を含む): 46747008

約数和(自身を除く): 25896080

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2243, 2324, 4486, 4648, 8972, 9296, 15701, 17944, 31402, 35888, 62804, 125608, 186169, 251216, 372338, 744676, 1303183, 1489352, 2606366, 2978704, 5212732, 10425464, 20850928]

約数ペア:

[(1, 20850928), (2, 10425464), (4, 5212732), (7, 2978704), (8, 2606366), (14, 1489352), (16, 1303183), (28, 744676), (56, 372338), (83, 251216), (112, 186169), (166, 125608), (332, 62804), (581, 35888), (664, 31402), (1162, 17944), (1328, 15701), (2243, 9296), (2324, 8972), (4486, 4648)]