81788994

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{216373}}^1$

素因数の和:216391

約数の個数: 32

約数和(自身を含む): 207719040

約数和(自身を除く): 125930046

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 216373, 432746, 649119, 1298238, 1514611, 1947357, 3029222, 3894714, 4543833, 5842071, 9087666, 11684142, 13631499, 27262998, 40894497, 81788994]

約数ペア:

[(1, 81788994), (2, 40894497), (3, 27262998), (6, 13631499), (7, 11684142), (9, 9087666), (14, 5842071), (18, 4543833), (21, 3894714), (27, 3029222), (42, 1947357), (54, 1514611), (63, 1298238), (126, 649119), (189, 432746), (378, 216373)]