28101855

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{653}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 47715840

約数和(自身を除く): 19613985

約数列:

[1, 3, 5, 15, 19, 57, 95, 151, 285, 453, 653, 755, 1959, 2265, 2869, 3265, 8607, 9795, 12407, 14345, 37221, 43035, 62035, 98603, 186105, 295809, 493015, 1479045, 1873457, 5620371, 9367285, 28101855]

約数ペア:

[(1, 28101855), (3, 9367285), (5, 5620371), (15, 1873457), (19, 1479045), (57, 493015), (95, 295809), (151, 186105), (285, 98603), (453, 62035), (653, 43035), (755, 37221), (1959, 14345), (2265, 12407), (2869, 9795), (3265, 8607)]