28509747

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71453}}^1$

素因数の和:71482

約数の個数: 16

約数和(自身を含む): 45730560

約数和(自身を除く): 17220813

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71453, 214359, 500171, 1357607, 1500513, 4072821, 9503249, 28509747]

約数ペア:

[(1, 28509747), (3, 9503249), (7, 4072821), (19, 1500513), (21, 1357607), (57, 500171), (133, 214359), (399, 71453)]