19910412

素因数分解:

$2^2\times 3^2\times {\mathrm{553067}}^1$

素因数の和:553077

約数の個数: 18

約数和(自身を含む): 50329188

約数和(自身を除く): 30418776

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 553067, 1106134, 1659201, 2212268, 3318402, 4977603, 6636804, 9955206, 19910412]

約数ペア:

[(1, 19910412), (2, 9955206), (3, 6636804), (4, 4977603), (6, 3318402), (9, 2212268), (12, 1659201), (18, 1106134), (36, 553067)]