19975998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{475619}}^1$

素因数の和:475631

約数の個数: 16

約数和(自身を含む): 45659520

約数和(自身を除く): 25683522

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 475619, 951238, 1426857, 2853714, 3329333, 6658666, 9987999, 19975998]

約数ペア:

[(1, 19975998), (2, 9987999), (3, 6658666), (6, 3329333), (7, 2853714), (14, 1426857), (21, 951238), (42, 475619)]