25721745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1231}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 47308800

約数和(自身を除く): 21587055

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 199, 597, 995, 1231, 1393, 2985, 3693, 4179, 6155, 6965, 8617, 18465, 20895, 25851, 43085, 129255, 244969, 734907, 1224845, 1714783, 3674535, 5144349, 8573915, 25721745]

約数ペア:

[(1, 25721745), (3, 8573915), (5, 5144349), (7, 3674535), (15, 1714783), (21, 1224845), (35, 734907), (105, 244969), (199, 129255), (597, 43085), (995, 25851), (1231, 20895), (1393, 18465), (2985, 8617), (3693, 6965), (4179, 6155)]