21399917798

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89915621}}^1$

素因数の和:89915647

約数の個数: 16

約数和(自身を含む): 38843548704

約数和(自身を除く): 17443630906

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89915621, 179831242, 629409347, 1258818694, 1528565557, 3057131114, 10699958899, 21399917798]

約数ペア:

[(1, 21399917798), (2, 10699958899), (7, 3057131114), (14, 1528565557), (17, 1258818694), (34, 629409347), (119, 179831242), (238, 89915621)]