19938618

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{158243}}^1$

素因数の和:158258

約数の個数: 24

約数和(自身を含む): 49372128

約数和(自身を除く): 29433510

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 158243, 316486, 474729, 949458, 1107701, 1424187, 2215402, 2848374, 3323103, 6646206, 9969309, 19938618]

約数ペア:

[(1, 19938618), (2, 9969309), (3, 6646206), (6, 3323103), (7, 2848374), (9, 2215402), (14, 1424187), (18, 1107701), (21, 949458), (42, 474729), (63, 316486), (126, 158243)]