21536042

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 37791360

約数和(自身を除く): 16255318

約数列:

[1, 2, 11, 17, 22, 34, 89, 178, 187, 374, 647, 979, 1294, 1513, 1958, 3026, 7117, 10999, 14234, 16643, 21998, 33286, 57583, 115166, 120989, 241978, 633413, 978911, 1266826, 1957822, 10768021, 21536042]

約数ペア:

[(1, 21536042), (2, 10768021), (11, 1957822), (17, 1266826), (22, 978911), (34, 633413), (89, 241978), (178, 120989), (187, 115166), (374, 57583), (647, 33286), (979, 21998), (1294, 16643), (1513, 14234), (1958, 10999), (3026, 7117)]