21402898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:762

約数の個数: 32

約数和(自身を含む): 37558080

約数和(自身を除く): 16155182

約数列:

[1, 2, 11, 17, 22, 34, 89, 178, 187, 374, 643, 979, 1286, 1513, 1958, 3026, 7073, 10931, 14146, 16643, 21862, 33286, 57227, 114454, 120241, 240482, 629497, 972859, 1258994, 1945718, 10701449, 21402898]

約数ペア:

[(1, 21402898), (2, 10701449), (11, 1945718), (17, 1258994), (22, 972859), (34, 629497), (89, 240482), (178, 120241), (187, 114454), (374, 57227), (643, 33286), (979, 21862), (1286, 16643), (1513, 14146), (1958, 10931), (3026, 7073)]