19910367

素因数分解:

$3^4\times {\mathrm{373}}^1\times {\mathrm{659}}^1$

素因数の和:1044

約数の個数: 20

約数和(自身を含む): 29867640

約数和(自身を除く): 9957273

約数列:

[1, 3, 9, 27, 81, 373, 659, 1119, 1977, 3357, 5931, 10071, 17793, 30213, 53379, 245807, 737421, 2212263, 6636789, 19910367]

約数ペア:

[(1, 19910367), (3, 6636789), (9, 2212263), (27, 737421), (81, 245807), (373, 53379), (659, 30213), (1119, 17793), (1977, 10071), (3357, 5931)]