19980821478

素因数分解:

$2^1\times 3^1\times {\mathrm{373}}^1\times {\mathrm{8927981}}^1$

素因数の和:8928359

約数の個数: 16

約数和(自身を含む): 40068783216

約数和(自身を除く): 20087961738

約数列:

[1, 2, 3, 6, 373, 746, 1119, 2238, 8927981, 17855962, 26783943, 53567886, 3330136913, 6660273826, 9990410739, 19980821478]

約数ペア:

[(1, 19980821478), (2, 9990410739), (3, 6660273826), (6, 3330136913), (373, 53567886), (746, 26783943), (1119, 17855962), (2238, 8927981)]